diff --git a/en/.buildinfo b/en/.buildinfo
index 22c5408b9..a64af8bdb 100644
--- a/en/.buildinfo
+++ b/en/.buildinfo
@@ -1,4 +1,4 @@
 # Sphinx build info version 1
 # This file hashes the configuration used when building these files. When it is not found, a full rebuild will be done.
-config: d43769548e7b62e09763e29009737d2a
+config: fac91aa1496cc72c43c3260e3f895adc
 tags: 645f666f9bcd5a90fca523b33c5a78b7
diff --git a/en/README.html b/en/README.html
index 93bbd99e0..a83b1fb8a 100644
--- a/en/README.html
+++ b/en/README.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>&lt;no title&gt; &mdash; Arthas 3.0.5 documentation</title>
+  <title>&lt;no title&gt; &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -63,7 +63,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -89,6 +89,7 @@
             
               <ul>
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -199,7 +200,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/_images/arthas.png b/en/_images/arthas.png
index 29e08ccc8..73317782d 100644
Binary files a/en/_images/arthas.png and b/en/_images/arthas.png differ
diff --git a/en/_images/web-console-local.png b/en/_images/web-console-local.png
index 10ca94df8..56f44e4f2 100644
Binary files a/en/_images/web-console-local.png and b/en/_images/web-console-local.png differ
diff --git a/en/_sources/cat.md.txt b/en/_sources/cat.md.txt
new file mode 100644
index 000000000..e45035f17
--- /dev/null
+++ b/en/_sources/cat.md.txt
@@ -0,0 +1,9 @@
+cat
+===
+
+> Concatenate and print files
+
+
+```bash
+$ cat /tmp/a.txt
+```
\ No newline at end of file
diff --git a/en/_sources/commands.md.txt b/en/_sources/commands.md.txt
index b4311b654..e87f7686c 100644
--- a/en/_sources/commands.md.txt
+++ b/en/_sources/commands.md.txt
@@ -16,6 +16,7 @@ All Commands
 
 * [jad](jad.md)
 * [classloader](classloader.md)
+* [mc](mc.md)
 * [redefine](redefine.md)
 
 * [monitor](monitor.md)
@@ -24,6 +25,8 @@ All Commands
 * [stack](stack.md)
 * [tt](tt.md)
 
+* [cat](cat.md)
+* [pwd](pwd.md)
 * [options](options.md)
 
 
diff --git a/en/_sources/index.md.txt b/en/_sources/index.md.txt
index 305473d7a..2bde3983f 100644
--- a/en/_sources/index.md.txt
+++ b/en/_sources/index.md.txt
@@ -39,6 +39,7 @@ Contents
 --------
 
 * [Installation](install-detail.md)
+* [Online tutorials(Recommend)](https://alibaba.github.io/arthas/arthas-tutorials?language=en)
 * [Quick start](quick-start.md)
 * [Advanced usage](advanced-use.md)
 * [Commands](commands.md)
diff --git a/en/_sources/install-detail.md.txt b/en/_sources/install-detail.md.txt
index d1d0b02f2..f61c15b64 100644
--- a/en/_sources/install-detail.md.txt
+++ b/en/_sources/install-detail.md.txt
@@ -35,7 +35,7 @@ You can enter its interactive interface by executing `as.sh`, or execute `as.sh
 
 ## Full installation
 
-Latest Version, Click To Download: [![Arthas](https://img.shields.io/maven-central/v/com.taobao.arthas/arthas-packaging.svg?style=flat-square "Arthas")](http://repository.sonatype.org/service/local/artifact/maven/redirect?r=central-proxy&g=com.taobao.arthas&a=arthas-packaging&e=zip&c=bin&v=LATEST)
+Latest Version, Click To Download: [![Arthas](https://img.shields.io/maven-central/v/com.taobao.arthas/arthas-packaging.svg?style=flat-square "Arthas")](http://repository.sonatype.org/service/local/artifact/maven/redirect?r=central-proxy&g=com.taobao.arthas&a=arthas-packaging&e=zip&c=doc&v=LATEST)
 
 Download and unzip, find `arthas-boot.jar` in the directory. Start with `java` command:
 
diff --git a/en/_sources/mc.md.txt b/en/_sources/mc.md.txt
new file mode 100644
index 000000000..23c66099c
--- /dev/null
+++ b/en/_sources/mc.md.txt
@@ -0,0 +1,22 @@
+mc
+===
+
+> Memory compiler, compiles java files into bytecode and class files in memory.
+
+```bash
+mc /tmp/Test.java
+```
+
+The classloader can be specified with the `-c` option:
+
+```bash
+mc -c 327a647b /tmp/Test.java
+```
+
+The output directory can be specified with the `-d` option:
+
+```bash
+mc -d /tmp/output /tmp/ClassA.java /tmp/ClassB.java
+```
+
+After compiling the `.class` file, you can use the [`redefine`](redefine.md) command to re-define the loaded classes in JVM.
\ No newline at end of file
diff --git a/en/_sources/pwd.md.txt b/en/_sources/pwd.md.txt
new file mode 100644
index 000000000..12f26292f
--- /dev/null
+++ b/en/_sources/pwd.md.txt
@@ -0,0 +1,9 @@
+pwd
+===
+
+> Return working directory name
+
+
+```bash
+$ pwd
+```
\ No newline at end of file
diff --git a/en/_sources/redefine.md.txt b/en/_sources/redefine.md.txt
index 7d2ca400a..2bd09c22e 100644
--- a/en/_sources/redefine.md.txt
+++ b/en/_sources/redefine.md.txt
@@ -18,10 +18,25 @@ Reference: [Instrumentation#redefineClasses](https://docs.oracle.com/javase/8/do
 ### Usage
 
 ```bash
-redefine -p /tmp/Test.class
-redefine -c 327a647b -p /tmp/Test.class /tmp/Test$Inner.class
+redefine /tmp/Test.class
+redefine -c 327a647b /tmp/Test.class /tmp/Test$Inner.class
 ```
 
+### Use with the jad/mc command
+
+```bash
+jad --source-only com.example.demo.arthas.user.UserController > /tmp/UserController.java
+
+mc /tmp/UserController.java -d /tmp
+
+redefine /tmp/com/example/demo/arthas/user/UserController.class
+```
+
+* Use `jad` command to decompile bytecode, and then you can use other editors, such as vim to modify the source code.
+* `mc` command to compile the modified code
+* Load new bytecode with `redefine` command
+
+
 ### Restrictions of the redefine command
 
 * New field/method is not allowed
diff --git a/en/_sources/release-notes.md.txt b/en/_sources/release-notes.md.txt
index 95d9b3d5f..14d7f1470 100644
--- a/en/_sources/release-notes.md.txt
+++ b/en/_sources/release-notes.md.txt
@@ -1,6 +1,11 @@
 Release Notes
 =============
 
+v3.1.0
+---
+
+* [https://github.com/alibaba/arthas/releases/tag/3.1.0](https://github.com/alibaba/arthas/releases/tag/3.1.0)
+
 
 v3.0.5
 ---
diff --git a/en/_sources/tt.md.txt b/en/_sources/tt.md.txt
index ce541c7c7..e95fcb9ba 100644
--- a/en/_sources/tt.md.txt
+++ b/en/_sources/tt.md.txt
@@ -57,7 +57,7 @@ Affect(class-cnt:1 , method-cnt:1) cost in 66 ms.
 * Condition expression
 
 Tips:
-1. `tt -t *Test print params[0].length==1` with different amounts of parameters;
+1. `tt -t *Test print params.length==1` with different amounts of parameters;
 2. `tt -t *Test print 'params[1] instanceof Integer'` with different types of parameters;
 3. `tt -t *Test print params[0].mobile=="13989838402"` with specified parameter.
   
@@ -127,7 +127,8 @@ Affect(row-cnt:1) cost in 11 ms.
 
 ### Replay record
 
-Since Arthas stores the context of the call, you can even *replay* the method calling afterwards with extra option `-p` to replay the issue for advanced troubleshooting.
+Since Arthas stores the context of the call, you can even *replay* the method calling afterwards with extra option `-p` to replay the issue for advanced troubleshooting, option `--replay-times` 
+define the replay execution times, option  `--replay-interval` define the interval(unit in ms,with default value 1000) of replays   
 
 ```bash
 $ tt -i 1004 -p
diff --git a/en/_static/documentation_options.js b/en/_static/documentation_options.js
index 98bb9f8c6..e9266a919 100644
--- a/en/_static/documentation_options.js
+++ b/en/_static/documentation_options.js
@@ -1,6 +1,6 @@
 var DOCUMENTATION_OPTIONS = {
     URL_ROOT: document.getElementById("documentation_options").getAttribute('data-url_root'),
-    VERSION: '3.0.5',
+    VERSION: '3.1.0',
     LANGUAGE: 'en',
     COLLAPSE_INDEX: false,
     FILE_SUFFIX: '.html',
diff --git a/en/_static/favicon.ico b/en/_static/favicon.ico
index da3074e87..df9b02e1e 100644
Binary files a/en/_static/favicon.ico and b/en/_static/favicon.ico differ
diff --git a/en/_static/logo.png b/en/_static/logo.png
new file mode 100644
index 000000000..a58394ee0
Binary files /dev/null and b/en/_static/logo.png differ
diff --git a/en/_static/web-console-local.png b/en/_static/web-console-local.png
index 10ca94df8..56f44e4f2 100644
Binary files a/en/_static/web-console-local.png and b/en/_static/web-console-local.png differ
diff --git a/en/advanced-use.html b/en/advanced-use.html
index a10317f3f..6623fb4e2 100644
--- a/en/advanced-use.html
+++ b/en/advanced-use.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Advanced Usage &mdash; Arthas 3.0.5 documentation</title>
+  <title>Advanced Usage &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1 current"><a class="current reference internal" href="#">Advanced usage</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="#basic">Basic</a></li>
@@ -327,7 +328,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/advice-class.html b/en/advice-class.html
index 89fabed86..2078621fb 100644
--- a/en/advice-class.html
+++ b/en/advice-class.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Fundamental Fields in Expressions &mdash; Arthas 3.0.5 documentation</title>
+  <title>Fundamental Fields in Expressions &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -106,6 +107,7 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2 current"><a class="reference internal" href="watch.html">watch</a><ul class="current">
@@ -121,6 +123,8 @@
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -320,7 +324,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/async.html b/en/async.html
index 40e4ac781..1abcc4db2 100644
--- a/en/async.html
+++ b/en/async.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Arthas Async Jobs &mdash; Arthas 3.0.5 documentation</title>
+  <title>Arthas Async Jobs &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="advanced-use.html">Advanced usage</a><ul class="current">
 <li class="toctree-l2"><a class="reference internal" href="advanced-use.html#basic">Basic</a></li>
@@ -312,7 +313,7 @@ cache location  : /Users/gehui/logs/arthas-cache/28198/2
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/batch-support.html b/en/batch-support.html
index 342e0bd00..a83447c5f 100644
--- a/en/batch-support.html
+++ b/en/batch-support.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Batch Processing &mdash; Arthas 3.0.5 documentation</title>
+  <title>Batch Processing &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="advanced-use.html">Advanced usage</a><ul class="current">
 <li class="toctree-l2"><a class="reference internal" href="advanced-use.html#basic">Basic</a></li>
@@ -270,7 +271,7 @@ sc -d org.apache.commons.lang.StringUtils
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/cat.html b/en/cat.html
new file mode 100644
index 000000000..cb0ac139c
--- /dev/null
+++ b/en/cat.html
@@ -0,0 +1,300 @@
+
+
+<!DOCTYPE html>
+<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
+<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
+<head>
+  <meta charset="utf-8">
+  
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  
+  <title>cat &mdash; Arthas 3.1.0 documentation</title>
+  
+
+  
+  
+    <link rel="shortcut icon" href="_static/favicon.ico"/>
+  
+  
+  
+
+  
+
+  
+  
+    
+
+  
+
+  <link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
+  <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
+    <link rel="stylesheet" href="_static/overrides.css" type="text/css" />
+    <link rel="index" title="Index" href="genindex.html" />
+    <link rel="search" title="Search" href="search.html" />
+    <link rel="next" title="pwd" href="pwd.html" />
+    <link rel="prev" title="tt" href="tt.html" />
+<script src="_static/center_page.js"></script>
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/github.min.css">
+ 
+
+
+  
+  <script src="_static/js/modernizr.min.js"></script>
+
+</head>
+
+<body class="wy-body-for-nav">
+
+   
+  <div class="wy-grid-for-nav">
+
+    
+    <nav data-toggle="wy-nav-shift" class="wy-nav-side">
+      <div class="wy-side-scroll">
+        <div class="wy-side-nav-search">
+          
+
+          
+            <a href="index.html" class="icon icon-home"> Arthas
+          
+
+          
+          </a>
+
+          
+            
+            
+              <div class="version">
+                3.1.0
+              </div>
+            
+          
+
+          
+<div role="search">
+  <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
+    <input type="text" name="q" placeholder="Search docs" />
+    <input type="hidden" name="check_keywords" value="yes" />
+    <input type="hidden" name="area" value="default" />
+  </form>
+</div>
+
+          
+        </div>
+
+        <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
+          
+            
+            
+              
+            
+            
+              <ul class="current">
+<li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
+<li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
+<li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
+<li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="dashboard.html">dashboard</a></li>
+<li class="toctree-l2"><a class="reference internal" href="thread.html">thread</a></li>
+<li class="toctree-l2"><a class="reference internal" href="jvm.html">jvm</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sysprop.html">sysprop</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sysenv.html">sysenv</a></li>
+<li class="toctree-l2"><a class="reference internal" href="getstatic.html">getstatic</a></li>
+<li class="toctree-l2"><a class="reference internal" href="ognl.html">ognl</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sc.html">sc</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sm.html">sm</a></li>
+<li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
+<li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
+<li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
+<li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
+<li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
+<li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
+<li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
+<li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="#">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
+<li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
+<li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="docker.html">Docker</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/issues?q=label%3Auser-case">User cases</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/issues?q=label%3Aquestion-answered">Questions and answers</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas">Fork me at GitHub</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/blob/master/CONTRIBUTING.md">CONTRIBUTING</a></li>
+<li class="toctree-l1"><a class="reference internal" href="release-notes.html">Release Notes</a></li>
+</ul>
+
+            
+          
+        </div>
+      </div>
+    </nav>
+
+    <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
+
+      
+      <nav class="wy-nav-top" aria-label="top navigation">
+        
+          <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
+          <a href="index.html">Arthas</a>
+        
+      </nav>
+
+
+      <div class="wy-nav-content">
+        
+        <div class="rst-content">
+        
+          
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+<div role="navigation" aria-label="breadcrumbs navigation">
+
+  <ul class="wy-breadcrumbs">
+    
+      <li><a href="index.html">Docs</a> &raquo;</li>
+        
+          <li><a href="commands.html">All Commands</a> &raquo;</li>
+        
+      <li>cat</li>
+    
+    
+      <li class="wy-breadcrumbs-aside">
+        
+            
+            
+              <a href="https://github.com/alibaba/arthas/blob/master/site/src/site/sphinx/en/cat.md" class="fa fa-github"> Edit on GitHub</a>
+            
+          
+        
+      </li>
+    
+  </ul>
+
+  
+  <hr/>
+</div>
+          <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
+           <div itemprop="articleBody">
+            
+  <div class="section" id="cat">
+<span id="cat"></span><h1>cat<a class="headerlink" href="#cat" title="Permalink to this headline">¶</a></h1>
+<blockquote>
+<div>Concatenate and print files</div></blockquote>
+<div class="highlight-bash notranslate"><div class="highlight hljs"><pre class="bash">$ cat /tmp/a.txt
+</pre></div>
+</div>
+</div>
+
+
+           </div>
+           
+          </div>
+          <footer>
+  
+    <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
+      
+        <a href="pwd.html" class="btn btn-neutral float-right" title="pwd" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
+      
+      
+        <a href="tt.html" class="btn btn-neutral" title="tt" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
+      
+    </div>
+  
+
+  <hr/>
+
+  <div role="contentinfo">
+    <p>
+        &copy; Copyright 2018, Alibaba Middleware Group, and contributors.
+
+    </p>
+  </div>
+  Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/rtfd/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. 
+
+</footer>
+
+        </div>
+      </div>
+
+    </section>
+
+  </div>
+  
+
+
+  
+
+    <script type="text/javascript">
+        var DOCUMENTATION_OPTIONS = {
+            URL_ROOT:'./',
+            VERSION:'3.1.0',
+            LANGUAGE:'en',
+            COLLAPSE_INDEX:false,
+            FILE_SUFFIX:'.html',
+            HAS_SOURCE:  true,
+            SOURCELINK_SUFFIX: '.txt'
+        };
+    </script>
+      <script type="text/javascript" src="_static/jquery.js"></script>
+      <script type="text/javascript" src="_static/underscore.js"></script>
+      <script type="text/javascript" src="_static/doctools.js"></script>
+      <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
+
+  
+
+  <script type="text/javascript" src="_static/js/theme.js"></script>
+
+  <script type="text/javascript">
+      jQuery(function () {
+          SphinxRtdTheme.Navigation.enable(true);
+      });
+  </script>
+<div class="github-fork-ribbon-wrapper right">
+  <div class="github-fork-ribbon">
+    <a href="https://github.com/alibaba/arthas">Fork me at GitHub</a>
+  </div>
+</div>
+
+<script type="text/javascript" src="_static/add_badges.js"></script>
+
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/highlight.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlightjs-line-numbers.js/2.5.0/highlightjs-line-numbers.min.js"></script>
+<script>
+  document.querySelectorAll('div.hljs > pre').forEach(function(block) {
+    hljs.highlightBlock(block);
+    hljs.lineNumbersBlock(block);
+  });
+</script>
+
+<script>
+  var _hmt = _hmt || [];
+  (function() {
+    var hm = document.createElement("script");
+    hm.src = "https://hm.baidu.com/hm.js?d5c5e25b100f0eb51a4c35c8a86ea9b4";
+    var s = document.getElementsByTagName("script")[0]; 
+    s.parentNode.insertBefore(hm, s);
+  })();
+</script>  
+ 
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/en/classloader.html b/en/classloader.html
index 3ec40899b..df800fd9a 100644
--- a/en/classloader.html
+++ b/en/classloader.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>classloader &mdash; Arthas 3.0.5 documentation</title>
+  <title>classloader &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -31,7 +31,7 @@
     <link rel="stylesheet" href="_static/overrides.css" type="text/css" />
     <link rel="index" title="Index" href="genindex.html" />
     <link rel="search" title="Search" href="search.html" />
-    <link rel="next" title="redefine" href="redefine.html" />
+    <link rel="next" title="mc" href="mc.html" />
     <link rel="prev" title="jad" href="jad.html" />
 <script src="_static/center_page.js"></script>
 <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/github.min.css">
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
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@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -118,12 +119,15 @@
 </li>
 </ul>
 </li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -342,7 +346,7 @@ load class success.
   
     <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
       
-        <a href="redefine.html" class="btn btn-neutral float-right" title="redefine" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
+        <a href="mc.html" class="btn btn-neutral float-right" title="mc" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
       
       
         <a href="jad.html" class="btn btn-neutral" title="jad" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
@@ -376,7 +380,7 @@ load class success.
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
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             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/commands.html b/en/commands.html
index 8f32eb74f..1be8019d2 100644
--- a/en/commands.html
+++ b/en/commands.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>All Commands &mdash; Arthas 3.0.5 documentation</title>
+  <title>All Commands &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
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@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="current reference internal" href="#">Commands</a><ul>
@@ -106,12 +107,15 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -204,12 +208,15 @@
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 <li class="toctree-l1"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l1"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l1"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l1"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l1"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l1"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l1"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l1"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l1"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l1"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l1"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l1"><a class="reference internal" href="options.html">options</a></li>
 </ul>
 </div>
@@ -271,7 +278,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
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             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/dashboard.html b/en/dashboard.html
index e3536dbcb..07bf15563 100644
--- a/en/dashboard.html
+++ b/en/dashboard.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>dashboard &mdash; Arthas 3.0.5 documentation</title>
+  <title>dashboard &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -111,12 +112,15 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -300,7 +304,7 @@ uptime                            16020s                            busy
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/docker.html b/en/docker.html
index ec0d3d788..e7ca05ed7 100644
--- a/en/docker.html
+++ b/en/docker.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Docker &mdash; Arthas 3.0.5 documentation</title>
+  <title>Docker &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -276,7 +277,7 @@ COPY --from=hengyunabc/arthas:latest /opt/arthas /opt/arthas</pre>
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
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             FILE_SUFFIX:'.html',
diff --git a/en/dump.html b/en/dump.html
index 4e0dcfa6c..74ac82080 100644
--- a/en/dump.html
+++ b/en/dump.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>dump &mdash; Arthas 3.0.5 documentation</title>
+  <title>dump &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -110,12 +111,15 @@
 </li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -282,7 +286,7 @@ Affect(row-cnt:1) cost in 39 ms.
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
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             FILE_SUFFIX:'.html',
diff --git a/en/genindex.html b/en/genindex.html
index dffbbbac8..09624fe81 100644
--- a/en/genindex.html
+++ b/en/genindex.html
@@ -9,7 +9,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Index &mdash; Arthas 3.0.5 documentation</title>
+  <title>Index &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -64,7 +64,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -90,6 +90,7 @@
             
               <ul>
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -205,7 +206,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
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             FILE_SUFFIX:'.html',
diff --git a/en/getstatic.html b/en/getstatic.html
index 44fc2a8a3..acc1d354b 100644
--- a/en/getstatic.html
+++ b/en/getstatic.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>getstatic &mdash; Arthas 3.0.5 documentation</title>
+  <title>getstatic &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -110,12 +111,15 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -287,7 +291,7 @@ field: m
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/groovy.html b/en/groovy.html
index 8d330a484..e9f9c908d 100644
--- a/en/groovy.html
+++ b/en/groovy.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>groovy &mdash; Arthas 3.0.5 documentation</title>
+  <title>groovy &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -63,7 +63,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -89,6 +89,7 @@
             
               <ul>
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -389,7 +390,7 @@ returning:class=IbatisProductDao;method=getProductById;
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/index.html b/en/index.html
index 0ecc8f208..eb2417681 100644
--- a/en/index.html
+++ b/en/index.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Arthas Documentation &mdash; Arthas 3.0.5 documentation</title>
+  <title>Arthas Documentation &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -64,7 +64,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -90,6 +90,7 @@
             
               <ul>
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -200,6 +201,7 @@
 <div class="toctree-wrapper compound">
 <ul>
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -254,7 +256,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/install-detail.html b/en/install-detail.html
index c420cf716..9aac6ad45 100644
--- a/en/install-detail.html
+++ b/en/install-detail.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Install Arthas &mdash; Arthas 3.0.5 documentation</title>
+  <title>Install Arthas &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -102,6 +102,7 @@
 <li class="toctree-l2"><a class="reference internal" href="#uninstall">Uninstall</a></li>
 </ul>
 </li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -205,7 +206,7 @@ java -jar arthas-boot.jar
 </div>
 <div class="section" id="full-installation">
 <span id="full-installation"></span><h2>Full installation<a class="headerlink" href="#full-installation" title="Permalink to this headline">¶</a></h2>
-<p>Latest Version, Click To Download: <a class="reference external" href="http://repository.sonatype.org/service/local/artifact/maven/redirect?r=central-proxy&amp;g=com.taobao.arthas&amp;a=arthas-packaging&amp;e=zip&amp;c=bin&amp;v=LATEST"><img alt="Arthas" src="https://img.shields.io/maven-central/v/com.taobao.arthas/arthas-packaging.svg?style=flat-square" /></a></p>
+<p>Latest Version, Click To Download: <a class="reference external" href="http://repository.sonatype.org/service/local/artifact/maven/redirect?r=central-proxy&amp;g=com.taobao.arthas&amp;a=arthas-packaging&amp;e=zip&amp;c=doc&amp;v=LATEST"><img alt="Arthas" src="https://img.shields.io/maven-central/v/com.taobao.arthas/arthas-packaging.svg?style=flat-square" /></a></p>
 <p>Download and unzip, find <tt class="docutils literal">arthas-boot.jar</tt> in the directory. Start with <tt class="docutils literal">java</tt> command:</p>
 <div class="highlight-bash notranslate"><div class="highlight hljs"><pre class="bash">java -jar arthas-boot.jar
 </pre></div>
@@ -280,7 +281,7 @@ rm -rf ~/logs/arthas/
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/jad.html b/en/jad.html
index d3d92d280..8d4a341e7 100644
--- a/en/jad.html
+++ b/en/jad.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>jad &mdash; Arthas 3.0.5 documentation</title>
+  <title>jad &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -115,12 +116,15 @@
 </ul>
 </li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -378,7 +382,7 @@ Affect(row-cnt:1) cost in 190 ms.
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/jvm.html b/en/jvm.html
index 0c9f695c2..20216672e 100644
--- a/en/jvm.html
+++ b/en/jvm.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>jvm &mdash; Arthas 3.0.5 documentation</title>
+  <title>jvm &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -111,12 +112,15 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -350,7 +354,7 @@ Affect cost in 2 ms.</pre>
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/keymap.html b/en/keymap.html
index 743f1f653..473e56e1d 100644
--- a/en/keymap.html
+++ b/en/keymap.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Arthas Console Keymap &mdash; Arthas 3.0.5 documentation</title>
+  <title>Arthas Console Keymap &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -63,7 +63,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -89,6 +89,7 @@
             
               <ul>
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -367,7 +368,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/manual-install.html b/en/manual-install.html
index 693f38289..6f5ac03e8 100644
--- a/en/manual-install.html
+++ b/en/manual-install.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Manually Install Arthas &mdash; Arthas 3.0.5 documentation</title>
+  <title>Manually Install Arthas &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -63,7 +63,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -89,6 +89,7 @@
             
               <ul>
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -289,7 +290,7 @@ cd arthas
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/mc.html b/en/mc.html
new file mode 100644
index 000000000..039c017f0
--- /dev/null
+++ b/en/mc.html
@@ -0,0 +1,309 @@
+
+
+<!DOCTYPE html>
+<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
+<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
+<head>
+  <meta charset="utf-8">
+  
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  
+  <title>mc &mdash; Arthas 3.1.0 documentation</title>
+  
+
+  
+  
+    <link rel="shortcut icon" href="_static/favicon.ico"/>
+  
+  
+  
+
+  
+
+  
+  
+    
+
+  
+
+  <link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
+  <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
+    <link rel="stylesheet" href="_static/overrides.css" type="text/css" />
+    <link rel="index" title="Index" href="genindex.html" />
+    <link rel="search" title="Search" href="search.html" />
+    <link rel="next" title="redefine" href="redefine.html" />
+    <link rel="prev" title="classloader" href="classloader.html" />
+<script src="_static/center_page.js"></script>
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/github.min.css">
+ 
+
+
+  
+  <script src="_static/js/modernizr.min.js"></script>
+
+</head>
+
+<body class="wy-body-for-nav">
+
+   
+  <div class="wy-grid-for-nav">
+
+    
+    <nav data-toggle="wy-nav-shift" class="wy-nav-side">
+      <div class="wy-side-scroll">
+        <div class="wy-side-nav-search">
+          
+
+          
+            <a href="index.html" class="icon icon-home"> Arthas
+          
+
+          
+          </a>
+
+          
+            
+            
+              <div class="version">
+                3.1.0
+              </div>
+            
+          
+
+          
+<div role="search">
+  <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
+    <input type="text" name="q" placeholder="Search docs" />
+    <input type="hidden" name="check_keywords" value="yes" />
+    <input type="hidden" name="area" value="default" />
+  </form>
+</div>
+
+          
+        </div>
+
+        <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
+          
+            
+            
+              
+            
+            
+              <ul class="current">
+<li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
+<li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
+<li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
+<li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="dashboard.html">dashboard</a></li>
+<li class="toctree-l2"><a class="reference internal" href="thread.html">thread</a></li>
+<li class="toctree-l2"><a class="reference internal" href="jvm.html">jvm</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sysprop.html">sysprop</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sysenv.html">sysenv</a></li>
+<li class="toctree-l2"><a class="reference internal" href="getstatic.html">getstatic</a></li>
+<li class="toctree-l2"><a class="reference internal" href="ognl.html">ognl</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sc.html">sc</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sm.html">sm</a></li>
+<li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
+<li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
+<li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="#">mc</a></li>
+<li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
+<li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
+<li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
+<li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
+<li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
+<li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
+<li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="docker.html">Docker</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/issues?q=label%3Auser-case">User cases</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/issues?q=label%3Aquestion-answered">Questions and answers</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas">Fork me at GitHub</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/blob/master/CONTRIBUTING.md">CONTRIBUTING</a></li>
+<li class="toctree-l1"><a class="reference internal" href="release-notes.html">Release Notes</a></li>
+</ul>
+
+            
+          
+        </div>
+      </div>
+    </nav>
+
+    <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
+
+      
+      <nav class="wy-nav-top" aria-label="top navigation">
+        
+          <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
+          <a href="index.html">Arthas</a>
+        
+      </nav>
+
+
+      <div class="wy-nav-content">
+        
+        <div class="rst-content">
+        
+          
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+<div role="navigation" aria-label="breadcrumbs navigation">
+
+  <ul class="wy-breadcrumbs">
+    
+      <li><a href="index.html">Docs</a> &raquo;</li>
+        
+          <li><a href="commands.html">All Commands</a> &raquo;</li>
+        
+      <li>mc</li>
+    
+    
+      <li class="wy-breadcrumbs-aside">
+        
+            
+            
+              <a href="https://github.com/alibaba/arthas/blob/master/site/src/site/sphinx/en/mc.md" class="fa fa-github"> Edit on GitHub</a>
+            
+          
+        
+      </li>
+    
+  </ul>
+
+  
+  <hr/>
+</div>
+          <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
+           <div itemprop="articleBody">
+            
+  <div class="section" id="mc">
+<span id="mc"></span><h1>mc<a class="headerlink" href="#mc" title="Permalink to this headline">¶</a></h1>
+<blockquote>
+<div>Memory compiler, compiles java files into bytecode and class files in memory.</div></blockquote>
+<div class="highlight-bash notranslate"><div class="highlight hljs"><pre class="bash">mc /tmp/Test.java
+</pre></div>
+</div>
+<p>The classloader can be specified with the <tt class="docutils literal">-c</tt> option:</p>
+<div class="highlight-bash notranslate"><div class="highlight hljs"><pre class="bash">mc -c 327a647b /tmp/Test.java
+</pre></div>
+</div>
+<p>The output directory can be specified with the <tt class="docutils literal">-d</tt> option:</p>
+<div class="highlight-bash notranslate"><div class="highlight hljs"><pre class="bash">mc -d /tmp/output /tmp/ClassA.java /tmp/ClassB.java
+</pre></div>
+</div>
+<p>After compiling the <tt class="docutils literal">.class</tt> file, you can use the <a class="reference external" href="redefine.md"><tt class="docutils literal">redefine</tt></a> command to re-define the loaded classes in JVM.</p>
+</div>
+
+
+           </div>
+           
+          </div>
+          <footer>
+  
+    <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
+      
+        <a href="redefine.html" class="btn btn-neutral float-right" title="redefine" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
+      
+      
+        <a href="classloader.html" class="btn btn-neutral" title="classloader" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
+      
+    </div>
+  
+
+  <hr/>
+
+  <div role="contentinfo">
+    <p>
+        &copy; Copyright 2018, Alibaba Middleware Group, and contributors.
+
+    </p>
+  </div>
+  Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/rtfd/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. 
+
+</footer>
+
+        </div>
+      </div>
+
+    </section>
+
+  </div>
+  
+
+
+  
+
+    <script type="text/javascript">
+        var DOCUMENTATION_OPTIONS = {
+            URL_ROOT:'./',
+            VERSION:'3.1.0',
+            LANGUAGE:'en',
+            COLLAPSE_INDEX:false,
+            FILE_SUFFIX:'.html',
+            HAS_SOURCE:  true,
+            SOURCELINK_SUFFIX: '.txt'
+        };
+    </script>
+      <script type="text/javascript" src="_static/jquery.js"></script>
+      <script type="text/javascript" src="_static/underscore.js"></script>
+      <script type="text/javascript" src="_static/doctools.js"></script>
+      <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
+
+  
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+  <script type="text/javascript" src="_static/js/theme.js"></script>
+
+  <script type="text/javascript">
+      jQuery(function () {
+          SphinxRtdTheme.Navigation.enable(true);
+      });
+  </script>
+<div class="github-fork-ribbon-wrapper right">
+  <div class="github-fork-ribbon">
+    <a href="https://github.com/alibaba/arthas">Fork me at GitHub</a>
+  </div>
+</div>
+
+<script type="text/javascript" src="_static/add_badges.js"></script>
+
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/highlight.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlightjs-line-numbers.js/2.5.0/highlightjs-line-numbers.min.js"></script>
+<script>
+  document.querySelectorAll('div.hljs > pre').forEach(function(block) {
+    hljs.highlightBlock(block);
+    hljs.lineNumbersBlock(block);
+  });
+</script>
+
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+  (function() {
+    var hm = document.createElement("script");
+    hm.src = "https://hm.baidu.com/hm.js?d5c5e25b100f0eb51a4c35c8a86ea9b4";
+    var s = document.getElementsByTagName("script")[0]; 
+    s.parentNode.insertBefore(hm, s);
+  })();
+</script>  
+ 
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/en/monitor.html b/en/monitor.html
index adc317640..583ab4348 100644
--- a/en/monitor.html
+++ b/en/monitor.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>monitor &mdash; Arthas 3.0.5 documentation</title>
+  <title>monitor &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
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@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -106,6 +107,7 @@
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 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2 current"><a class="current reference internal" href="#">monitor</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="#items-to-monitor">Items to monitor</a></li>
@@ -117,6 +119,8 @@
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -351,7 +355,7 @@ Affect(class-cnt:1 , method-cnt:1) cost in 94 ms.
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
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             FILE_SUFFIX:'.html',
diff --git a/en/objects.inv b/en/objects.inv
index a52df6394..327ee5fc4 100644
Binary files a/en/objects.inv and b/en/objects.inv differ
diff --git a/en/ognl.html b/en/ognl.html
index 6dcfbe8f9..a9029ec5c 100644
--- a/en/ognl.html
+++ b/en/ognl.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>ognl &mdash; Arthas 3.0.5 documentation</title>
+  <title>ognl &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -114,12 +115,15 @@
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 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
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 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -314,7 +318,7 @@ null
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
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             FILE_SUFFIX:'.html',
diff --git a/en/options.html b/en/options.html
index a6c12d638..a3f1b4734 100644
--- a/en/options.html
+++ b/en/options.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>options &mdash; Arthas 3.0.5 documentation</title>
+  <title>options &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -32,7 +32,7 @@
     <link rel="index" title="Index" href="genindex.html" />
     <link rel="search" title="Search" href="search.html" />
     <link rel="next" title="Docker" href="docker.html" />
-    <link rel="prev" title="tt" href="tt.html" />
+    <link rel="prev" title="pwd" href="pwd.html" />
 <script src="_static/center_page.js"></script>
 <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/github.min.css">
  
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
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@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -106,12 +107,15 @@
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 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2 current"><a class="current reference internal" href="#">options</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="#usage">Usage</a></li>
 </ul>
@@ -269,7 +273,7 @@
         <a href="docker.html" class="btn btn-neutral float-right" title="Docker" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
       
       
-        <a href="tt.html" class="btn btn-neutral" title="tt" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
+        <a href="pwd.html" class="btn btn-neutral" title="pwd" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
       
     </div>
   
@@ -300,7 +304,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
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             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/pwd.html b/en/pwd.html
new file mode 100644
index 000000000..f7be38ae8
--- /dev/null
+++ b/en/pwd.html
@@ -0,0 +1,300 @@
+
+
+<!DOCTYPE html>
+<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
+<!--[if gt IE 8]><!--> <html class="no-js" lang="en" > <!--<![endif]-->
+<head>
+  <meta charset="utf-8">
+  
+  <meta name="viewport" content="width=device-width, initial-scale=1.0">
+  
+  <title>pwd &mdash; Arthas 3.1.0 documentation</title>
+  
+
+  
+  
+    <link rel="shortcut icon" href="_static/favicon.ico"/>
+  
+  
+  
+
+  
+
+  
+  
+    
+
+  
+
+  <link rel="stylesheet" href="_static/css/theme.css" type="text/css" />
+  <link rel="stylesheet" href="_static/pygments.css" type="text/css" />
+    <link rel="stylesheet" href="_static/overrides.css" type="text/css" />
+    <link rel="index" title="Index" href="genindex.html" />
+    <link rel="search" title="Search" href="search.html" />
+    <link rel="next" title="options" href="options.html" />
+    <link rel="prev" title="cat" href="cat.html" />
+<script src="_static/center_page.js"></script>
+<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/github.min.css">
+ 
+
+
+  
+  <script src="_static/js/modernizr.min.js"></script>
+
+</head>
+
+<body class="wy-body-for-nav">
+
+   
+  <div class="wy-grid-for-nav">
+
+    
+    <nav data-toggle="wy-nav-shift" class="wy-nav-side">
+      <div class="wy-side-scroll">
+        <div class="wy-side-nav-search">
+          
+
+          
+            <a href="index.html" class="icon icon-home"> Arthas
+          
+
+          
+          </a>
+
+          
+            
+            
+              <div class="version">
+                3.1.0
+              </div>
+            
+          
+
+          
+<div role="search">
+  <form id="rtd-search-form" class="wy-form" action="search.html" method="get">
+    <input type="text" name="q" placeholder="Search docs" />
+    <input type="hidden" name="check_keywords" value="yes" />
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+        <div class="wy-menu wy-menu-vertical" data-spy="affix" role="navigation" aria-label="main navigation">
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+            
+            
+              
+            
+            
+              <ul class="current">
+<li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
+<li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
+<li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
+<li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
+<li class="toctree-l2"><a class="reference internal" href="dashboard.html">dashboard</a></li>
+<li class="toctree-l2"><a class="reference internal" href="thread.html">thread</a></li>
+<li class="toctree-l2"><a class="reference internal" href="jvm.html">jvm</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sysprop.html">sysprop</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sysenv.html">sysenv</a></li>
+<li class="toctree-l2"><a class="reference internal" href="getstatic.html">getstatic</a></li>
+<li class="toctree-l2"><a class="reference internal" href="ognl.html">ognl</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sc.html">sc</a></li>
+<li class="toctree-l2"><a class="reference internal" href="sm.html">sm</a></li>
+<li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
+<li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
+<li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
+<li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
+<li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
+<li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
+<li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
+<li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
+<li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2 current"><a class="current reference internal" href="#">pwd</a></li>
+<li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
+<li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
+</ul>
+</li>
+<li class="toctree-l1"><a class="reference internal" href="docker.html">Docker</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/issues?q=label%3Auser-case">User cases</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/issues?q=label%3Aquestion-answered">Questions and answers</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas">Fork me at GitHub</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/blob/master/CONTRIBUTING.md">CONTRIBUTING</a></li>
+<li class="toctree-l1"><a class="reference internal" href="release-notes.html">Release Notes</a></li>
+</ul>
+
+            
+          
+        </div>
+      </div>
+    </nav>
+
+    <section data-toggle="wy-nav-shift" class="wy-nav-content-wrap">
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+      <nav class="wy-nav-top" aria-label="top navigation">
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+          <i data-toggle="wy-nav-top" class="fa fa-bars"></i>
+          <a href="index.html">Arthas</a>
+        
+      </nav>
+
+
+      <div class="wy-nav-content">
+        
+        <div class="rst-content">
+        
+          
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+<div role="navigation" aria-label="breadcrumbs navigation">
+
+  <ul class="wy-breadcrumbs">
+    
+      <li><a href="index.html">Docs</a> &raquo;</li>
+        
+          <li><a href="commands.html">All Commands</a> &raquo;</li>
+        
+      <li>pwd</li>
+    
+    
+      <li class="wy-breadcrumbs-aside">
+        
+            
+            
+              <a href="https://github.com/alibaba/arthas/blob/master/site/src/site/sphinx/en/pwd.md" class="fa fa-github"> Edit on GitHub</a>
+            
+          
+        
+      </li>
+    
+  </ul>
+
+  
+  <hr/>
+</div>
+          <div role="main" class="document" itemscope="itemscope" itemtype="http://schema.org/Article">
+           <div itemprop="articleBody">
+            
+  <div class="section" id="pwd">
+<span id="pwd"></span><h1>pwd<a class="headerlink" href="#pwd" title="Permalink to this headline">¶</a></h1>
+<blockquote>
+<div>Return working directory name</div></blockquote>
+<div class="highlight-bash notranslate"><div class="highlight hljs"><pre class="bash">$ pwd
+</pre></div>
+</div>
+</div>
+
+
+           </div>
+           
+          </div>
+          <footer>
+  
+    <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
+      
+        <a href="options.html" class="btn btn-neutral float-right" title="options" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
+      
+      
+        <a href="cat.html" class="btn btn-neutral" title="cat" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
+      
+    </div>
+  
+
+  <hr/>
+
+  <div role="contentinfo">
+    <p>
+        &copy; Copyright 2018, Alibaba Middleware Group, and contributors.
+
+    </p>
+  </div>
+  Built with <a href="http://sphinx-doc.org/">Sphinx</a> using a <a href="https://github.com/rtfd/sphinx_rtd_theme">theme</a> provided by <a href="https://readthedocs.org">Read the Docs</a>. 
+
+</footer>
+
+        </div>
+      </div>
+
+    </section>
+
+  </div>
+  
+
+
+  
+
+    <script type="text/javascript">
+        var DOCUMENTATION_OPTIONS = {
+            URL_ROOT:'./',
+            VERSION:'3.1.0',
+            LANGUAGE:'en',
+            COLLAPSE_INDEX:false,
+            FILE_SUFFIX:'.html',
+            HAS_SOURCE:  true,
+            SOURCELINK_SUFFIX: '.txt'
+        };
+    </script>
+      <script type="text/javascript" src="_static/jquery.js"></script>
+      <script type="text/javascript" src="_static/underscore.js"></script>
+      <script type="text/javascript" src="_static/doctools.js"></script>
+      <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/mathjax/2.7.1/MathJax.js?config=TeX-AMS-MML_HTMLorMML"></script>
+
+  
+
+  <script type="text/javascript" src="_static/js/theme.js"></script>
+
+  <script type="text/javascript">
+      jQuery(function () {
+          SphinxRtdTheme.Navigation.enable(true);
+      });
+  </script>
+<div class="github-fork-ribbon-wrapper right">
+  <div class="github-fork-ribbon">
+    <a href="https://github.com/alibaba/arthas">Fork me at GitHub</a>
+  </div>
+</div>
+
+<script type="text/javascript" src="_static/add_badges.js"></script>
+
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/highlight.min.js"></script>
+<script src="https://cdnjs.cloudflare.com/ajax/libs/highlightjs-line-numbers.js/2.5.0/highlightjs-line-numbers.min.js"></script>
+<script>
+  document.querySelectorAll('div.hljs > pre').forEach(function(block) {
+    hljs.highlightBlock(block);
+    hljs.lineNumbersBlock(block);
+  });
+</script>
+
+<script>
+  var _hmt = _hmt || [];
+  (function() {
+    var hm = document.createElement("script");
+    hm.src = "https://hm.baidu.com/hm.js?d5c5e25b100f0eb51a4c35c8a86ea9b4";
+    var s = document.getElementsByTagName("script")[0]; 
+    s.parentNode.insertBefore(hm, s);
+  })();
+</script>  
+ 
+
+
+</body>
+</html>
\ No newline at end of file
diff --git a/en/quick-start.html b/en/quick-start.html
index 6c2b0e7b4..62a331bc3 100644
--- a/en/quick-start.html
+++ b/en/quick-start.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Quick Start &mdash; Arthas 3.0.5 documentation</title>
+  <title>Quick Start &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1 current"><a class="current reference internal" href="#">Quick start</a><ul>
 <li class="toctree-l2"><a class="reference internal" href="#start-demo-application">1. Start Demo Application</a></li>
 <li class="toctree-l2"><a class="reference internal" href="#start-arthas">2. Start Arthas</a><ul>
@@ -443,7 +444,7 @@ ts=2018-11-28 19:22:35; [cost=29.969732ms] result=@ArrayList[
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/redefine.html b/en/redefine.html
index c78db9c83..fd1936514 100644
--- a/en/redefine.html
+++ b/en/redefine.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>redefine &mdash; Arthas 3.0.5 documentation</title>
+  <title>redefine &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -32,7 +32,7 @@
     <link rel="index" title="Index" href="genindex.html" />
     <link rel="search" title="Search" href="search.html" />
     <link rel="next" title="monitor" href="monitor.html" />
-    <link rel="prev" title="classloader" href="classloader.html" />
+    <link rel="prev" title="mc" href="mc.html" />
 <script src="_static/center_page.js"></script>
 <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/github.min.css">
  
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -106,9 +107,11 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2 current"><a class="current reference internal" href="#">redefine</a><ul>
 <li class="toctree-l3"><a class="reference internal" href="#options">Options</a></li>
 <li class="toctree-l3"><a class="reference internal" href="#usage">Usage</a></li>
+<li class="toctree-l3"><a class="reference internal" href="#use-with-the-jad-mc-command">Use with the jad/mc command</a></li>
 <li class="toctree-l3"><a class="reference internal" href="#restrictions-of-the-redefine-command">Restrictions of the redefine command</a></li>
 </ul>
 </li>
@@ -117,6 +120,8 @@
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -224,11 +229,26 @@
 </table></div>
 <div class="section" id="usage">
 <span id="usage"></span><h2>Usage<a class="headerlink" href="#usage" title="Permalink to this headline">¶</a></h2>
-<div class="highlight-bash notranslate"><div class="highlight hljs"><pre class="bash">redefine -p /tmp/Test.class
-redefine -c 327a647b -p /tmp/Test.class /tmp/Test$Inner.class
+<div class="highlight-bash notranslate"><div class="highlight hljs"><pre class="bash">redefine /tmp/Test.class
+redefine -c 327a647b /tmp/Test.class /tmp/Test$Inner.class
 </pre></div>
 </div>
 </div>
+<div class="section" id="use-with-the-jad-mc-command">
+<span id="use-with-the-jad-mc-command"></span><h2>Use with the jad/mc command<a class="headerlink" href="#use-with-the-jad-mc-command" title="Permalink to this headline">¶</a></h2>
+<div class="highlight-bash notranslate"><div class="highlight hljs"><pre class="bash">jad --source-only com.example.demo.arthas.user.UserController &gt; /tmp/UserController.java
+
+mc /tmp/UserController.java -d /tmp
+
+redefine /tmp/com/example/demo/arthas/user/UserController.class
+</pre></div>
+</div>
+<ul class="simple">
+<li>Use <tt class="docutils literal">jad</tt> command to decompile bytecode, and then you can use other editors, such as vim to modify the source code.</li>
+<li><tt class="docutils literal">mc</tt> command to compile the modified code</li>
+<li>Load new bytecode with <tt class="docutils literal">redefine</tt> command</li>
+</ul>
+</div>
 <div class="section" id="restrictions-of-the-redefine-command">
 <span id="restrictions-of-the-redefine-command"></span><h2>Restrictions of the redefine command<a class="headerlink" href="#restrictions-of-the-redefine-command" title="Permalink to this headline">¶</a></h2>
 <ul>
@@ -278,7 +298,7 @@ redefine -c 327a647b -p /tmp/Test.class /tmp/Test$Inner.class
         <a href="monitor.html" class="btn btn-neutral float-right" title="monitor" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
       
       
-        <a href="classloader.html" class="btn btn-neutral" title="classloader" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
+        <a href="mc.html" class="btn btn-neutral" title="mc" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
       
     </div>
   
@@ -309,7 +329,7 @@ redefine -c 327a647b -p /tmp/Test.class /tmp/Test$Inner.class
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/release-notes.html b/en/release-notes.html
index 5adb13d9f..579c75d54 100644
--- a/en/release-notes.html
+++ b/en/release-notes.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Release Notes &mdash; Arthas 3.0.5 documentation</title>
+  <title>Release Notes &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -64,7 +64,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -90,6 +90,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -99,6 +100,10 @@
 <li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas">Fork me at GitHub</a></li>
 <li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/blob/master/CONTRIBUTING.md">CONTRIBUTING</a></li>
 <li class="toctree-l1 current"><a class="current reference internal" href="#">Release Notes</a><ul>
+<li class="toctree-l2"><a class="reference internal" href="#v3-1-0">v3.1.0</a><ul>
+<li class="toctree-l3"><a class="reference external" href="https://github.com/alibaba/arthas/releases/tag/3.1.0">https://github.com/alibaba/arthas/releases/tag/3.1.0</a></li>
+</ul>
+</li>
 <li class="toctree-l2"><a class="reference internal" href="#v3-0-5">v3.0.5</a><ul>
 <li class="toctree-l3"><a class="reference external" href="https://github.com/alibaba/arthas/releases/tag/arthas-all-3.0.5">https://github.com/alibaba/arthas/releases/tag/arthas-all-3.0.5</a></li>
 </ul>
@@ -189,6 +194,14 @@
             
   <div class="section" id="release-notes">
 <span id="release-notes"></span><h1>Release Notes<a class="headerlink" href="#release-notes" title="Permalink to this headline">¶</a></h1>
+<div class="section" id="v3-1-0">
+<span id="v3-1-0"></span><h2>v3.1.0<a class="headerlink" href="#v3-1-0" title="Permalink to this headline">¶</a></h2>
+<div class="toctree-wrapper compound">
+<ul>
+<li class="toctree-l1"><a class="reference external" href="https://github.com/alibaba/arthas/releases/tag/3.1.0">https://github.com/alibaba/arthas/releases/tag/3.1.0</a></li>
+</ul>
+</div>
+</div>
 <div class="section" id="v3-0-5">
 <span id="v3-0-5"></span><h2>v3.0.5<a class="headerlink" href="#v3-0-5" title="Permalink to this headline">¶</a></h2>
 <div class="toctree-wrapper compound">
@@ -376,7 +389,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/reset.html b/en/reset.html
index fa56de91e..6950bfe43 100644
--- a/en/reset.html
+++ b/en/reset.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>reset &mdash; Arthas 3.0.5 documentation</title>
+  <title>reset &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -63,7 +63,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -89,6 +89,7 @@
             
               <ul>
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -250,7 +251,7 @@ Affect(class-cnt:1 , method-cnt:0) cost in 9 ms.</pre>
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/save-log.html b/en/save-log.html
index c79a949e7..f763381a2 100644
--- a/en/save-log.html
+++ b/en/save-log.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Log command outputs &mdash; Arthas 3.0.5 documentation</title>
+  <title>Log command outputs &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="advanced-use.html">Advanced usage</a><ul class="current">
 <li class="toctree-l2"><a class="reference internal" href="advanced-use.html#basic">Basic</a></li>
@@ -264,7 +265,7 @@ cache location  : /Users/zhuyong/logs/arthas-cache/28198/2
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/sc.html b/en/sc.html
index 64b4412c8..d14f18be8 100644
--- a/en/sc.html
+++ b/en/sc.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>sc &mdash; Arthas 3.0.5 documentation</title>
+  <title>sc &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -110,12 +111,15 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -357,7 +361,7 @@ Affect(row-cnt:1) cost in 19 ms.
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/search.html b/en/search.html
index 219c93f82..7a389eb54 100644
--- a/en/search.html
+++ b/en/search.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Search &mdash; Arthas 3.0.5 documentation</title>
+  <title>Search &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -63,7 +63,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -89,6 +89,7 @@
             
               <ul>
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
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diff --git a/en/sm.html b/en/sm.html
index 46e3bde69..ef4972067 100644
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+++ b/en/sm.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
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+  <title>sm &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
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-                3.0.5
+                3.1.0
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@@ -91,6 +91,7 @@
             
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 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
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@@ -110,12 +111,15 @@
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 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
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 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
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 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
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@@ -336,7 +340,7 @@ Affect(row-cnt:1) cost in 3 ms.
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diff --git a/en/stack.html b/en/stack.html
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+++ b/en/stack.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>stack &mdash; Arthas 3.0.5 documentation</title>
+  <title>stack &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
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+                3.1.0
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@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -106,6 +107,7 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
@@ -122,6 +124,8 @@
 </ul>
 </li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -334,7 +338,7 @@ ts=2018-12-04 01:35:58;thread_name=main;id=1;is_daemon=false;priority=5;TCCL=sun
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/start-arthas.html b/en/start-arthas.html
index 71747957c..9ebf3ee1f 100644
--- a/en/start-arthas.html
+++ b/en/start-arthas.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Start Arthas &mdash; Arthas 3.0.5 documentation</title>
+  <title>Start Arthas &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -63,7 +63,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -89,6 +89,7 @@
             
               <ul>
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1"><a class="reference internal" href="commands.html">Commands</a></li>
@@ -271,7 +272,7 @@ $
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/sysenv.html b/en/sysenv.html
index d63f1a38e..509466d54 100644
--- a/en/sysenv.html
+++ b/en/sysenv.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>sysenv &mdash; Arthas 3.0.5 documentation</title>
+  <title>sysenv &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -113,12 +114,15 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -310,7 +314,7 @@ USER=admin</pre>
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/sysprop.html b/en/sysprop.html
index 728e9e587..4630da7f6 100644
--- a/en/sysprop.html
+++ b/en/sysprop.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>sysprop &mdash; Arthas 3.0.5 documentation</title>
+  <title>sysprop &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -114,12 +115,15 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -360,7 +364,7 @@ user.country=CN</pre>
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/thread.html b/en/thread.html
index 6c8dc9665..725ad348c 100644
--- a/en/thread.html
+++ b/en/thread.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>thread &mdash; Arthas 3.0.5 documentation</title>
+  <title>thread &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -117,12 +118,15 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -419,7 +423,7 @@ ID         NAME                             GROUP                 PRIORITY   STA
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/trace.html b/en/trace.html
index b329a8a20..026e4d74e 100644
--- a/en/trace.html
+++ b/en/trace.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>trace &mdash; Arthas 3.0.5 documentation</title>
+  <title>trace &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -106,6 +107,7 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
@@ -124,6 +126,8 @@
 </li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -365,7 +369,7 @@ Affect(class-cnt:1 , method-cnt:1) cost in 41 ms.
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/tt.html b/en/tt.html
index 64b1eac7a..40dd64016 100644
--- a/en/tt.html
+++ b/en/tt.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>tt &mdash; Arthas 3.0.5 documentation</title>
+  <title>tt &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -31,7 +31,7 @@
     <link rel="stylesheet" href="_static/overrides.css" type="text/css" />
     <link rel="index" title="Index" href="genindex.html" />
     <link rel="search" title="Search" href="search.html" />
-    <link rel="next" title="options" href="options.html" />
+    <link rel="next" title="cat" href="cat.html" />
     <link rel="prev" title="stack" href="stack.html" />
 <script src="_static/center_page.js"></script>
 <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/highlight.js/9.13.1/styles/github.min.css">
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -106,6 +107,7 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2"><a class="reference internal" href="watch.html">watch</a></li>
@@ -123,6 +125,8 @@
 <li class="toctree-l3"><a class="reference internal" href="#replay-record">Replay record</a></li>
 </ul>
 </li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -283,7 +287,7 @@ Affect(class-cnt:1 , method-cnt:1) cost in 66 ms.
 </ul>
 <p>Tips:</p>
 <ol class="simple">
-<li><tt class="docutils literal">tt -t *Test print params[0].length==1</tt> with different amounts of parameters;</li>
+<li><tt class="docutils literal">tt -t *Test print params.length==1</tt> with different amounts of parameters;</li>
 <li><tt class="docutils literal">tt -t *Test print 'params[1] instanceof Integer'</tt> with different types of parameters;</li>
 <li><tt class="docutils literal">tt -t *Test print params[0].mobile=="13989838402"</tt> with specified parameter.</li>
 </ol>
@@ -359,7 +363,8 @@ Affect(row-cnt:1) cost in 11 ms.
 </div>
 <div class="section" id="replay-record">
 <span id="replay-record"></span><h2>Replay record<a class="headerlink" href="#replay-record" title="Permalink to this headline">¶</a></h2>
-<p>Since Arthas stores the context of the call, you can even <em>replay</em> the method calling afterwards with extra option <tt class="docutils literal">-p</tt> to replay the issue for advanced troubleshooting.</p>
+<p>Since Arthas stores the context of the call, you can even <em>replay</em> the method calling afterwards with extra option <tt class="docutils literal">-p</tt> to replay the issue for advanced troubleshooting, option <tt class="docutils literal">--replay-times</tt>
+define the replay execution times, option  <tt class="docutils literal">--replay-interval</tt> define the interval(unit in ms,with default value 1000) of replays</p>
 <div class="highlight-bash notranslate"><div class="highlight hljs"><pre class="bash">$ tt -i 1004 -p
  RE-INDEX       1004
  GMT-REPLAY     2018-12-04 11:26:00
@@ -399,7 +404,7 @@ Affect(row-cnt:1) cost in 14 ms.
   
     <div class="rst-footer-buttons" role="navigation" aria-label="footer navigation">
       
-        <a href="options.html" class="btn btn-neutral float-right" title="options" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
+        <a href="cat.html" class="btn btn-neutral float-right" title="cat" accesskey="n" rel="next">Next <span class="fa fa-arrow-circle-right"></span></a>
       
       
         <a href="stack.html" class="btn btn-neutral" title="stack" accesskey="p" rel="prev"><span class="fa fa-arrow-circle-left"></span> Previous</a>
@@ -433,7 +438,7 @@ Affect(row-cnt:1) cost in 14 ms.
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/watch.html b/en/watch.html
index 5f6ae3096..76f8426d1 100644
--- a/en/watch.html
+++ b/en/watch.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>watch &mdash; Arthas 3.0.5 documentation</title>
+  <title>watch &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1"><a class="reference internal" href="advanced-use.html">Advanced usage</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="commands.html">Commands</a><ul class="current">
@@ -106,6 +107,7 @@
 <li class="toctree-l2"><a class="reference internal" href="dump.html">dump</a></li>
 <li class="toctree-l2"><a class="reference internal" href="jad.html">jad</a></li>
 <li class="toctree-l2"><a class="reference internal" href="classloader.html">classloader</a></li>
+<li class="toctree-l2"><a class="reference internal" href="mc.html">mc</a></li>
 <li class="toctree-l2"><a class="reference internal" href="redefine.html">redefine</a></li>
 <li class="toctree-l2"><a class="reference internal" href="monitor.html">monitor</a></li>
 <li class="toctree-l2 current"><a class="current reference internal" href="#">watch</a><ul>
@@ -132,6 +134,8 @@
 <li class="toctree-l2"><a class="reference internal" href="trace.html">trace</a></li>
 <li class="toctree-l2"><a class="reference internal" href="stack.html">stack</a></li>
 <li class="toctree-l2"><a class="reference internal" href="tt.html">tt</a></li>
+<li class="toctree-l2"><a class="reference internal" href="cat.html">cat</a></li>
+<li class="toctree-l2"><a class="reference internal" href="pwd.html">pwd</a></li>
 <li class="toctree-l2"><a class="reference internal" href="options.html">options</a></li>
 <li class="toctree-l2"><a class="reference internal" href="commands.html#basic-arthas-commands">Basic Arthas Commands</a></li>
 </ul>
@@ -527,7 +531,7 @@ ts=2018-12-03 20:04:35; [cost=0.961441ms] result=@Integer[8]
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',
diff --git a/en/web-console.html b/en/web-console.html
index 6a7a0fbb6..d39831bed 100644
--- a/en/web-console.html
+++ b/en/web-console.html
@@ -8,7 +8,7 @@
   
   <meta name="viewport" content="width=device-width, initial-scale=1.0">
   
-  <title>Web Console &mdash; Arthas 3.0.5 documentation</title>
+  <title>Web Console &mdash; Arthas 3.1.0 documentation</title>
   
 
   
@@ -65,7 +65,7 @@
             
             
               <div class="version">
-                3.0.5
+                3.1.0
               </div>
             
           
@@ -91,6 +91,7 @@
             
               <ul class="current">
 <li class="toctree-l1"><a class="reference internal" href="install-detail.html">Installation</a></li>
+<li class="toctree-l1"><a class="reference external" href="https://alibaba.github.io/arthas/arthas-tutorials?language=en">Online tutorials(Recommend)</a></li>
 <li class="toctree-l1"><a class="reference internal" href="quick-start.html">Quick start</a></li>
 <li class="toctree-l1 current"><a class="reference internal" href="advanced-use.html">Advanced usage</a><ul class="current">
 <li class="toctree-l2"><a class="reference internal" href="advanced-use.html#basic">Basic</a></li>
@@ -232,7 +233,7 @@
     <script type="text/javascript">
         var DOCUMENTATION_OPTIONS = {
             URL_ROOT:'./',
-            VERSION:'3.0.5',
+            VERSION:'3.1.0',
             LANGUAGE:'en',
             COLLAPSE_INDEX:false,
             FILE_SUFFIX:'.html',