fix bash codeblock highlight.

site/src/site/sphinx/arthas3.md

@@ -19,7 +19,7 @@ Arthas 3.0开始支持管道, 率先提供了`grep`,`wc`,`plaintext`的支持。
 
 groovy表达式在arthas2.0中大量使用，例如watch表达式
 
-```sh
+```bash
 watch com.alibaba.sample.petstore.web.store.module.screen.ItemList add "params + ' ' + returnObj" params.size()==2
 ```
 

site/src/site/sphinx/arthas_3_0/new_feature.md

@@ -16,7 +16,7 @@ Arthas 3.0最重要的特性，通过Arthas在线诊断平台，无需再登陆
 
 Arthas 3.0开始支持管道, 率先提供了`grep`,`wc`,`plaintext`的支持。
 
-```sh
+```bash
  java.vendor.url                                      http://java.oracle.com/
  java.vm.vendor                                       Oracle Corporation
  java.runtime.name                                    Java(TM) SE Runtime Environment
@@ -55,7 +55,7 @@ To solve this, choose one of the following command:
 
 groovy表达式在arthas2.0中大量使用，例如watch表达式
 
-```sh
+```bash
 watch com.alibaba.sample.petstore.web.store.module.screen.ItemList add "params + ' ' + returnObj" params.size()==2
 ```
 

site/src/site/sphinx/async.md

@@ -6,14 +6,14 @@ arthas中的异步调用，使用了仿linux系统任务相关的命令。[linux
 ## 1. 使用&在后台执行任务
 比如希望执行后台执行trace命令，那么调用下面命令
 
-```sh
+```bash
 trace Test t &  
 ```
 这时命令在后台执行，可以在console中继续执行其他命令。
 
 ## 2. 通过jobs查看任务
 如果希望查看当前有哪些arthas任务在执行，可以执行jobs命令，执行结果如下
-```sh
+```bash
 $ jobs
 [10]*
        Stopped           watch com.taobao.container.Test test "params[0].{? #this.name == null }" -x 2
@@ -43,13 +43,13 @@ $ jobs
 ## 5. 任务输出重定向
 可通过`>`或者`>>`将任务输出结果输出到指定的文件中，可以和`&`一起使用，实现arthas命令的异步调用。比如：
 
-```sh
+```bash
 $ trace Test t >> test.out &
 ```
 这时trace命令会在后台执行，并且把结果输出到~/logs/arthas-cache/test.out。可继续执行其他命令。并可查看文件中的命令执行结果。
 
 当连接到远程的arthas server时，可能无法查看远程机器的文件，arthas同时支持了自动重定向到本地缓存路径。使用方法如下：
-```sh
+```bash
 $ trace Test t >>  &
 job id  : 2
 cache location  : /Users/gehui/logs/arthas-cache/28198/2

site/src/site/sphinx/batch-support.md

@@ -28,12 +28,12 @@ sc -d org.apache.commons.lang.StringUtils
 
 通过`-b`开启批处理模式， `-f`执行脚本文件， 批处理脚本默认会输出到标准输出中，可以将结果重定向到文件中。
 
-```sh
+```bash
 ./as.sh -b -f /var/tmp/test.as 56328 > test.out
 ```
 
 #### 第三步： 查看运行结果
 
-```sh
+```bash
 cat test.out
 ```

site/src/site/sphinx/classloader.md

@@ -41,7 +41,7 @@ Affect(row-cnt:11) cost in 66 ms.
 
 * 按类加载实例查看统计信息
 
-```sh
+```bash
 $ classloader -l
  name                                                            loadedCount  hash      parent
  BootstrapClassLoader                                            3711         null      null

site/src/site/sphinx/en/async.md

@@ -8,7 +8,7 @@ Asynchronous jobs in arthas, using commands related to linux jobs.[linux man job
 
 For example, execute the trace command in the background:
 
-```sh
+```bash
 trace Test t &  
 ```
 
@@ -17,7 +17,7 @@ trace Test t &
 If you want to list all background jobs, you can execute the `jobs` command and the results are as follows:
 
 
-```sh
+```bash
 $ jobs
 [10]*
        Stopped           watch com.taobao.container.Test test "params[0].{? #this.name == null }" -x 2
@@ -54,7 +54,7 @@ When the job is executing in the foreground, such as directly calling the comman
 
 The job output can be redirect to the specified file by `>` or `>>`, and can be used together with `&` to implement the asynchronous job of the arthas command. such as:
 
-```sh
+```bash
 $ trace Test t >> test.out &
 ```
 
@@ -63,7 +63,7 @@ The trace command will be executed in the background and the output will be redi
 
 When connecting to a remote arthas server, you may not be able to view the files of the remote machine. Arthas also supports automatic redirection to the local cache file. Examples are as follows:
 
-```sh
+```bash
 $ trace Test t >>  &
 job id  : 2
 cache location  : /Users/gehui/logs/arthas-cache/28198/2

site/src/site/sphinx/en/batch-support.md

@@ -28,12 +28,12 @@ Attention:
 
 Using `-b` to turn on script mode, and `-f` to run it and you can also *redirect* the output as:
 
-```sh
+```bash
 ./as.sh -b -f /var/tmp/test.as 56328 > test.out
 ```
 
 #### Step-3: Check the outputs
 
-```sh
+```bash
 cat test.out
 ```

site/src/site/sphinx/en/classloader.md

@@ -19,7 +19,7 @@ It can be a great help for `ResourceNotFoundException` when you can use command
 
 * Categorised by class loader
 
-```sh
+```bash
 $ classloader
  name                                                   numberOfInstances  loadedCountTotal
  com.taobao.pandora.service.loader.ModuleClassLoader    29                 11659
@@ -38,7 +38,7 @@ Affect(row-cnt:11) cost in 66 ms.
 
 * Categorized by class loader instance
 
-```sh
+```bash
 $ classloader -l
  name                                                            loadedCount  hash      parent
  BootstrapClassLoader                                            3711         null      null

site/src/site/sphinx/en/jad.md

@@ -122,7 +122,7 @@ Affect(row-cnt:1) cost in 190 ms.
 
 De-compile the specified method:
 
-```sh
+```bash
 $ jad com.taobao.container.web.arthas.rest.MetricsController directMetrics
 
 ClassLoader:

site/src/site/sphinx/en/save-log.md

@@ -5,7 +5,7 @@ Log command outputs for later analysis, turned off by default.
 
 To turn it on, using [options](options.md) as:
 
-```sh
+```bash
 $ options save-result true
  NAME         BEFORE-VALUE  AFTER-VALUE
 ----------------------------------------
@@ -23,7 +23,7 @@ F.Y.I
  :notes: :notes: 
 With the latest Arthas, you can log the outputs asynchronously in the background:
 
-```sh
+```bash
 $ trace Test t >>  &
 job id  : 2
 cache location  : /Users/zhuyong/logs/arthas-cache/28198/2

site/src/site/sphinx/en/sm.md

@@ -61,7 +61,7 @@ org.apache.catalina.connector.Connector->getMaxCookieCount
 
 ```
 
-```sh
+```bash
 $ sm org.apache.catalina.connector.Connector -d
  declaring-class   org.apache.catalina.connector.Connector
  constructor-name  <init>

site/src/site/sphinx/en/start-arthas.md

@@ -7,7 +7,7 @@ Start Arthas
 ./as.sh
 ```
 
-```sh
+```bash
 ➜  bin git:(develop) ✗ ./as.sh
 Found existing java process, please choose one and hit RETURN.
   [1]: 3088 org.jetbrains.idea.maven.server.RemoteMavenServer

site/src/site/sphinx/en/thread.md

@@ -100,7 +100,7 @@ $ thread 1
 
 Using `-b`, we can effectively locate the threads holding locks blocking other threads resulting in a frozen system. 
 
-```sh
+```bash
 $ thread -b
 "http-bio-8080-exec-4" Id=27 TIMED_WAITING
     at java.lang.Thread.sleep(Native Method)
@@ -144,7 +144,7 @@ $ thread -b
 
 #### thread -i specify the collecting interval
 
-```sh
+```bash
 $ thread -n 3 -i 1000
 "as-command-execute-daemon" Id=4759 cpuUsage=23% RUNNABLE
     at sun.management.ThreadImpl.dumpThreads0(Native Method)

site/src/site/sphinx/jad.md

@@ -119,7 +119,7 @@ Affect(row-cnt:1) cost in 190 ms.
 
 反编译指定的方法：
 
-```sh
+```bash
 $ jad com.taobao.container.web.arthas.rest.MetricsController directMetrics
 
 ClassLoader:

site/src/site/sphinx/save-log.md

@@ -5,7 +5,7 @@
 
 * 默认情况下，该功能是关闭的，如果需要开启，请执行以下命令：
 
-```sh
+```bash
 $ options save-result true
  NAME         BEFORE-VALUE  AFTER-VALUE
 ----------------------------------------
@@ -21,7 +21,7 @@ Affect(row-cnt:1) cost in 3 ms.
 
 ### 使用新版本Arthas的异步后台任务将结果存日志文件
 
-```sh
+```bash
 $ trace Test t >>  &
 job id  : 2
 cache location  : /Users/zhuyong/logs/arthas-cache/28198/2

site/src/site/sphinx/sm.md

@@ -60,7 +60,7 @@ org.apache.catalina.connector.Connector->getMaxCookieCount
 
 ```
 
-```sh
+```bash
 $ sm org.apache.catalina.connector.Connector -d
  declaring-class   org.apache.catalina.connector.Connector
  constructor-name  <init>

site/src/site/sphinx/start-arthas.md

@@ -7,7 +7,7 @@
 ./as.sh
 ```
 
-```sh
+```bash
 ➜  bin git:(develop) ✗ ./as.sh
 Found existing java process, please choose one and hit RETURN.
   [1]: 3088 org.jetbrains.idea.maven.server.RemoteMavenServer

site/src/site/sphinx/thread.md

@@ -99,7 +99,7 @@ $ thread 1
 
 有时候我们发现应用卡住了， 通常是由于某个线程拿住了某个锁， 并且其他线程都在等待这把锁造成的。 为了排查这类问题， arthas提供了`thread -b`， 一键找出那个罪魁祸首。
 
-```sh
+```bash
 $ thread -b
 "http-bio-8080-exec-4" Id=27 TIMED_WAITING
     at java.lang.Thread.sleep(Native Method)
@@ -143,7 +143,7 @@ $ thread -b
 
 #### thread -i, 指定采样时间间隔
 
-```sh
+```bash
 $ thread -n 3 -i 1000
 "as-command-execute-daemon" Id=4759 cpuUsage=23% RUNNABLE
     at sun.management.ThreadImpl.dumpThreads0(Native Method)