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@@ -7,13 +7,14 @@ Advanced Usage
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* cls - clear the screen
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* [cat](cat.md) - Concatenate and print files
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* [grep](grep.md) - Pattern searcher
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* [tee](tee.md) - Copies standard input to standard output, making a copy in zero or more files.
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* [pwd](pwd.md) - Return working directory name
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* session - display current session information
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* [reset](reset.md) - reset all the enhanced classes. All enhanced classes will also be reset when Arthas server is closed by `stop/shutdown`
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* [reset](reset.md) - reset all the enhanced classes. All enhanced classes will also be reset when Arthas server is closed by `stop`
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* version - print the version for the Arthas attached to the current Java process
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* history - view command history
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* quit/exit - exit the current Arthas session, without effecting other sessions
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* stop/shutdown - terminate the Arthas server, all Arthas sessions will be destroyed
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* stop - terminate the Arthas server, all Arthas sessions will be destroyed
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* [keymap](keymap.md) - keymap for Arthas keyboard shortcut
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## JVM
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@@ -24,6 +25,7 @@ Advanced Usage
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* [sysprop](sysprop.md) - view/modify system properties
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* [sysenv](sysenv.md) — view system environment variables
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* [vmoption](vmoption.md) - view/modify the vm diagnostic options.
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* [perfcounter](perfcounter.md) - show JVM Perf Counter information
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* [logger](logger.md) - print the logger information, update the logger level
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* [getstatic](getstatic.md) - examine class's static properties
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* [ognl](ognl.md) - execute ongl expression
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@@ -7,6 +7,7 @@ All Commands
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* [sysprop](sysprop.md)
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* [sysenv](sysenv.md)
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* [vmoption](vmoption.md)
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* [perfcounter](perfcounter.md)
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* [logger](logger.md)
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* [mbean](mbean.md)
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* [getstatic](getstatic.md)
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@@ -33,6 +34,7 @@ All Commands
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* [cat](cat.md)
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* [grep](grep.md)
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* [tee](tee.md)
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* [pwd](pwd.md)
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* [options](options.md)
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@@ -46,8 +48,7 @@ All Commands
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* version - print out Arthas's version
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* history - view command history
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* quit - exit the current Arthas client without affecting other clients
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* stop - the same as `shutdown` command
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* shutdown - terminate the Arthas server, all the Arthas clients connecting to this server will be disconnected
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* stop - terminate the Arthas server, all the Arthas clients connecting to this server will be disconnected
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* [keymap](keymap.md) - list all Arthas keyboard shortcuts and shortcut customizations.
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@@ -3,9 +3,15 @@ Download
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## Download full package
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### Dwonload from maven central
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Latest Version, Click To Download: [](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)
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### Download from Github Releases
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[https://github.com/alibaba/arthas/releases](https://github.com/alibaba/arthas/releases)
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### Use as.sh
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Download and unzip, find `as.sh` in the directory. Start it in bash:
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@@ -0,0 +1,40 @@
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perfcounter
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===
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> Check the current JVM Perf Counter information.
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### Usage
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```
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$ perfcounter
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java.ci.totalTime 2325637411
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java.cls.loadedClasses 3403
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java.cls.sharedLoadedClasses 0
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java.cls.sharedUnloadedClasses 0
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java.cls.unloadedClasses 0
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java.property.java.version 11.0.4
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java.property.java.vm.info mixed mode
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java.property.java.vm.name OpenJDK 64-Bit Server VM
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...
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```
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Print more information with the `-d` option:
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```
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$ perfcounter -d
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Name Variability Units Value
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---------------------------------------------------------------------------------
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java.ci.totalTime Monotonic Ticks 3242526906
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java.cls.loadedClasses Monotonic Events 3404
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java.cls.sharedLoadedClasses Monotonic Events 0
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java.cls.sharedUnloadedClasses Monotonic Events 0
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java.cls.unloadedClasses Monotonic Events 0
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```
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### JVM above JDK9
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If the information is not printed, when the application starts, add the following parameters:
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```
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--add-opens java.base/jdk.internal.perf=ALL-UNNAMED --add-exports java.base/jdk.internal.perf=ALL-UNNAMED
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```
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@@ -1,7 +1,7 @@
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reset
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===
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> Reset all classes that have been enhanced by Arthas. These enhanced classes will also be reset when Arthas server is `stop/shutdown`.
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> Reset all classes that have been enhanced by Arthas. These enhanced classes will also be reset when Arthas server is `stop`.
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### Usage
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@@ -0,0 +1,25 @@
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tee
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===
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> Similar to the traditional `tee` command.
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```
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USAGE:
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tee [-a] [-h] [file]
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SUMMARY:
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tee command for pipes.
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EXAMPLES:
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sysprop | tee /path/to/logfile | grep java
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sysprop | tee -a /path/to/logfile | grep java
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WIKI:
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https://alibaba.github.io/arthas/tee
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OPTIONS:
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-a, --append Append to file
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-h, --help this help
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<file> File path
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```
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