update doc

site/src/site/sphinx/cat.md

@@ -0,0 +1,9 @@
+cat
+===
+
+> 打印文件内容，和linux里的cat命令类似。
+
+
+```bash
+$ cat /tmp/a.txt
+```

site/src/site/sphinx/commands.md

@@ -16,6 +16,7 @@
 
 * [jad](jad.md)
 * [classloader](classloader.md)
+* [mc](mc.md)
 * [redefine](redefine.md)
 
 * [monitor](monitor.md)
@@ -24,6 +25,8 @@
 * [stack](stack.md)
 * [tt](tt.md)
 
+* [cat](cat.md)
+* [pwd](pwd.md)
 * [options](options.md)
 
 ### Arthas 基础命令

site/src/site/sphinx/en/cat.md

@@ -0,0 +1,9 @@
+cat
+===
+
+> Concatenate and print files
+
+
+```bash
+$ cat /tmp/a.txt
+```

site/src/site/sphinx/en/commands.md

@@ -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)
 
 

site/src/site/sphinx/en/mc.md

@@ -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.

site/src/site/sphinx/en/pwd.md

@@ -0,0 +1,9 @@
+pwd
+===
+
+> Return working directory name
+
+
+```bash
+$ pwd
+```

site/src/site/sphinx/en/redefine.md

@@ -18,10 +18,25 @@ Reference: [Instrumentation#redefineClasses](https://docs.oracle.com/javase/8/do
 ### Usage
 
 ```bash
-redefine -p /tmp/Test.class
+redefine /tmp/Test.class
-redefine -c 327a647b -p /tmp/Test.class /tmp/Test$Inner.class
+redefine -c 327a647b /tmp/Test.class /tmp/Test$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

site/src/site/sphinx/en/release-notes.md

@@ -1,6 +1,11 @@
 Release Notes
 =============
 
+v3.1.0
+---
+
+* [https://github.com/alibaba/arthas/releases/tag/arthas-all-3.1.0](https://github.com/alibaba/arthas/releases/tag/arthas-all-3.1.0)
+
 
 v3.0.5
 ---

site/src/site/sphinx/mc.md

@@ -0,0 +1,22 @@
+mc
+===
+
+> Memory Compiler/内存编绎器，编绎`.java`文件生成`.class`。
+
+```bash
+mc /tmp/Test.java
+```
+
+可以通过`-c`参数指定classloader：
+
+```bash
+mc -c 327a647b /tmp/Test.java
+```
+
+可以通过`-d`命令指定输出目录：
+
+```bash
+mc -d /tmp/output /tmp/ClassA.java /tmp/ClassB.java
+```
+
+编绎生成`.class`文件之后，可以结合[`redefine`](redefine.md)命令实现热更新代码。

site/src/site/sphinx/pwd.md

@@ -0,0 +1,9 @@
+pwd
+===
+
+> 返回当前的工作目录，和linux命令类似
+
+
+```bash
+$ pwd
+```

site/src/site/sphinx/redefine.md

@@ -19,10 +19,24 @@ redefine
 ### 使用参考
 
 ```bash
-   redefine -p /tmp/Test.class
+   redefine /tmp/Test.class
-   redefine -c 327a647b -p /tmp/Test.class /tmp/Test\$Inner.class
+   redefine -c 327a647b /tmp/Test.class /tmp/Test\$Inner.class
 ```
 
+### 结合 jad/mc 命令使用
+
+```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
+```
+
+* jad命令反编绎，然后可以用其它编绎器，比如vim来修改源码
+* mc命令来内存编绎修改过的代码
+* 用redefine命令加载新的字节码
+
 ### redefine的限制
 
 * 不允许新增加field/method

site/src/site/sphinx/release-notes.md

@@ -2,6 +2,12 @@
 Release Notes
 ===
 
+v3.1.0
+---
+
+* [https://github.com/alibaba/arthas/releases/tag/arthas-all-3.1.0](https://github.com/alibaba/arthas/releases/tag/arthas-all-3.1.0)
+
+
 v3.0.5
 ---