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solution"><!--[--><!--]--><span>PaaS solution</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!--[--><!--]--></a></li><li class="navbar-dropdown-item"><a class="external-link" href="https://www.aliyun.com/product/servicemesh?spm=arthas.topbar.0.0.0" rel="noopener noreferrer" target="_blank" aria-label="Service mesh solution"><!--[--><!--]--><span>Service mesh solution</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!--[--><!--]--></a></li><!--]--></ul></div></div><div class="navbar-item"><a href="/en/doc/download.md" class="" aria-label="DOWNLOAD"><!--[--><!--]--> DOWNLOAD <!--[--><!--]--></a></div><div class="navbar-item"><a href="/en/doc/commands.md" class="" aria-label="COMMANDS"><!--[--><!--]--> COMMANDS <!--[--><!--]--></a></div><div class="navbar-item"><div class="navbar-dropdown-wrapper"><button class="navbar-dropdown-title" type="button" aria-label="Select language"><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="1em" height="1em" 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0-.7-.275q-.275-.275-.275-.7q0-.425.275-.7l4.35-4.35q-.675-.775-1.25-1.563q-.575-.787-1.025-1.662Q5.1 8.8 5.35 8.4t.875-.4q.25 0 .525.162q.275.163.4.388Z"></path></svg><span class="right arrow"></span></button><ul style="display:none;" class="navbar-dropdown"><!--[--><li class="navbar-dropdown-item"><a href="/doc/commands.html" class="" aria-label="简体中文"><!--[--><!--]--> 简体中文 <!--[--><!--]--></a></li><li class="navbar-dropdown-item"><a aria-current="page" href="/en/doc/commands.html" class="router-link-active router-link-exact-active router-link-active" aria-label="English"><!--[--><!--]--> English <!--[--><!--]--></a></li><!--]--></ul></div></div><div class="navbar-item"><a class="external-link" href="https://github.com/alibaba/arthas" rel="noopener noreferrer" target="_blank" aria-label="GitHub"><!--[--><!--]--><svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewbox="0 0 24 24" style="height:1.25rem;width:1.25rem;vertical-align:bottom;"><path 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href="/en/doc/quick-start.html" class="sidebar-item" aria-label="Quick Start"><!--[--><!--]--> Quick Start <!--[--><!--]--></a><!----></li><li><a href="/en/doc/install-detail.html" class="sidebar-item" aria-label="Install Arthas"><!--[--><!--]--> Install Arthas <!--[--><!--]--></a><!----></li><li><a href="/en/doc/download.html" class="sidebar-item" aria-label="Download"><!--[--><!--]--> Download <!--[--><!--]--></a><!----></li><li><a href="/en/doc/advanced-use.html" class="sidebar-item" aria-label="Advanced Usage"><!--[--><!--]--> Advanced Usage <!--[--><!--]--></a><!----></li><li><p tabindex="0" class="sidebar-item collapsible">Other features <span class="right arrow"></span></p><ul style="display:none;" class="sidebar-item-children"><!--[--><li><a href="/en/doc/async.html" class="sidebar-item" aria-label="Arthas Async Jobs"><!--[--><!--]--> Arthas Async Jobs <!--[--><!--]--></a><!----></li><li><a href="/en/doc/save-log.html" class="sidebar-item" aria-label="Log command outputs"><!--[--><!--]--> Log command outputs <!--[--><!--]--></a><!----></li><li><a href="/en/doc/batch-support.html" class="sidebar-item" aria-label="Batch Processing"><!--[--><!--]--> Batch Processing <!--[--><!--]--></a><!----></li><li><p tabindex="0" class="sidebar-item">How to use ognl <!----></p><ul style="display:none;" class="sidebar-item-children"><!--[--><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/issues/11" rel="noopener noreferrer" target="_blank" aria-label="Basic ognl example"><!--[--><!--]--><span>Basic ognl example</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 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aria-current="page" href="/en/doc/commands.html" class="router-link-active router-link-exact-active router-link-active sidebar-item active" aria-label="All Commands"><!--[--><!--]--> All Commands <!--[--><!--]--></a><!----></li><li><a href="/en/doc/web-console.html" class="sidebar-item" aria-label="Web Console"><!--[--><!--]--> Web Console <!--[--><!--]--></a><!----></li><li><a href="/en/doc/tunnel.html" class="sidebar-item" aria-label="Arthas Tunnel"><!--[--><!--]--> Arthas Tunnel <!--[--><!--]--></a><!----></li><li><a href="/en/doc/http-api.html" class="sidebar-item" aria-label="Http API"><!--[--><!--]--> Http API <!--[--><!--]--></a><!----></li><li><a href="/en/doc/docker.html" class="sidebar-item" aria-label="Docker"><!--[--><!--]--> Docker <!--[--><!--]--></a><!----></li><li><a href="/en/doc/spring-boot-starter.html" class="sidebar-item" aria-label="Arthas Spring Boot Starter"><!--[--><!--]--> Arthas Spring Boot Starter <!--[--><!--]--></a><!----></li><li><a href="/en/doc/idea-plugin.html" class="sidebar-item" aria-label="IDEA Plugin"><!--[--><!--]--> IDEA Plugin <!--[--><!--]--></a><!----></li><li><a href="/en/doc/faq.html" class="sidebar-item" aria-label="FAQ"><!--[--><!--]--> FAQ <!--[--><!--]--></a><!----></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/issues?q=label%3Auser-case" rel="noopener noreferrer" target="_blank" aria-label="User cases"><!--[--><!--]--><span>User cases</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!--[--><!--]--></a><!----></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas" rel="noopener noreferrer" target="_blank" aria-label="Start me at github"><!--[--><!--]--><span>Start me at github</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!--[--><!--]--></a><!----></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/blob/master/CONTRIBUTING.md" rel="noopener noreferrer" target="_blank" aria-label="Compile and debug/CONTRIBUTING"><!--[--><!--]--><span>Compile and debug/CONTRIBUTING</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!--[--><!--]--></a><!----></li><li><a class="external-link sidebar-item" href="https://github.com/alibaba/arthas/releases" rel="noopener noreferrer" target="_blank" aria-label="Release Notes"><!--[--><!--]--><span>Release Notes</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!--[--><!--]--></a><!----></li><li><a href="/en/doc/contact-us.md" class="sidebar-item" aria-label="Contact us"><!--[--><!--]--> Contact us <!--[--><!--]--></a><!----></li><!--]--></ul></li><!--]--></ul><!--[--><!--]--></aside><!--]--><!--[--><main class="page" data-v-e0e60120><!--[--><!--]--><div class="right-menu-padding theme-default-content" data-v-e0e60120><!--[--><!--]--><div class="right-menu-wrapper" data-v-e0e60120><div class="right-menu-margin"><div class="right-menu-title">Table of Contents</div><div class="right-menu-content"><!--[--><!--]--></div></div></div><div data-v-e0e60120><h1 id="all-commands" tabindex="-1"><a class="header-anchor" href="#all-commands" aria-hidden="true">#</a> All Commands</h1><h2 id="jvm-related" tabindex="-1"><a class="header-anchor" href="#jvm-related" aria-hidden="true">#</a> jvm - related</h2><ul><li><a href="/en/doc/dashboard.html" class="">dashboard</a> - dashboard for the system&#39;s real-time data</li><li><a href="/en/doc/getstatic.html" class="">getstatic</a> - examine class&#39;s static properties</li><li><a href="/en/doc/heapdump.html" class="">heapdump</a> - dump java heap in hprof binary format, like <code>jmap</code></li><li><a href="/en/doc/jvm.html" class="">jvm</a> - show JVM information</li><li><a href="/en/doc/logger.html" class="">logger</a> - print the logger information, update the logger level</li><li><a href="/en/doc/mbean.html" class="">mbean</a> - show Mbean information</li><li><a href="/en/doc/ognl.html" class="">ognl</a> - execute ognl expression</li><li><a href="/en/doc/perfcounter.html" class="">perfcounter</a> - show JVM Perf Counter information</li><li><a href="/en/doc/sysenv.html" class="">sysenv</a> — view system environment variables</li><li><a href="/en/doc/sysprop.html" class="">sysprop</a> - view/modify system properties</li><li><a href="/en/doc/thread.html" class="">thread</a> - show java thread information</li><li><a href="/en/doc/vmoption.html" class="">vmoption</a> - view/modify the vm diagnostic options.</li><li><a href="/en/doc/vmtool.html" class="">vmtool</a> - jvm tool, getInstances in jvm, forceGc</li></ul><h2 id="class-classloader-related" tabindex="-1"><a class="header-anchor" href="#class-classloader-related" aria-hidden="true">#</a> class/classloader - related</h2><ul><li><a href="/en/doc/classloader.html" class="">classloader</a> - check the inheritance structure, urls, class loading info for the specified class; using classloader to get the url of the resource e.g. <code>java/lang/String.class</code></li><li><a href="/en/doc/dump.html" class="">dump</a> - dump the loaded classes in byte code to the specified location</li><li><a href="/en/doc/jad.html" class="">jad</a> - decompile the specified loaded classes</li><li><a href="/en/doc/mc.html" class="">mc</a> - Memory compiler, compiles <code>.java</code> files into <code>.class</code> files in memory</li><li><a href="/en/doc/redefine.html" class="">redefine</a> - load external <code>*.class</code> files and re-define it into JVM</li><li><a href="/en/doc/retransform.html" class="">retransform</a> - load external <code>*.class</code> files and retransform it into JVM</li><li><a href="/en/doc/sc.html" class="">sc</a> - check the info for the classes loaded by JVM</li><li><a href="/en/doc/sm.html" class="">sm</a> - check methods info for the loaded classes</li></ul><h2 id="monitor-watch-trace-related" tabindex="-1"><a class="header-anchor" href="#monitor-watch-trace-related" aria-hidden="true">#</a> monitor/watch/trace - related</h2><div class="custom-container warning"><p class="custom-container-title">WARNING</p><p><strong>Attention</strong>: commands here are taking advantage of byte-code-injection, which means we are injecting some <a href="https://en.wikipedia.org/wiki/Aspect-oriented_programming" target="_blank" rel="noopener noreferrer">aspects<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a> into the current classes for monitoring and statistics purpose. Therefore, when using it for online troubleshooting in your production environment, you&#39;d better <strong>explicitly specify</strong> classes/methods/criteria, and remember to remove the injected code by <code>stop</code> or <code>reset</code>.</p></div><ul><li><a href="/en/doc/monitor.html" class="">monitor</a> - monitor method execution statistics</li><li><a href="/en/doc/stack.html" class="">stack</a> - display the stack trace for the specified class and method</li><li><a href="/en/doc/trace.html" class="">trace</a> - trace the execution time of specified method invocation</li><li><a href="/en/doc/tt.html" class="">tt</a> - time tunnel, record the arguments and returned value for the methods and replay</li><li><a href="/en/doc/watch.html" class="">watch</a> - display the input/output parameter, return object, and thrown exception of specified method invocation</li></ul><h2 id="authentication" tabindex="-1"><a class="header-anchor" href="#authentication" aria-hidden="true">#</a> authentication</h2><ul><li><a href="/en/doc/auth.html" class="">auth</a> - authentication</li></ul><h2 id="options" tabindex="-1"><a class="header-anchor" href="#options" aria-hidden="true">#</a> options</h2><ul><li><a href="/en/doc/options.html" class="">options</a> - check/set Arthas global options</li></ul><h2 id="profiler-flame-graph" tabindex="-1"><a class="header-anchor" href="#profiler-flame-graph" aria-hidden="true">#</a> profiler/flame graph</h2><ul><li><a href="/en/doc/profiler.html" class="">profiler</a> - use <a href="https://github.com/jvm-profiling-tools/async-profiler" target="_blank" rel="noopener noreferrer">async-profiler<span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span></a> to generate flame graph</li></ul><h2 id="pipe" tabindex="-1"><a class="header-anchor" href="#pipe" aria-hidden="true">#</a> pipe</h2><p>Arthas provides <code>pipe</code> to process the result returned from commands further, e.g. <code>sm java.lang.String * | grep &#39;index&#39;</code>. Commands supported in <code>pipe</code>:</p><ul><li>grep - filter the result with the given keyword</li><li>plaintext - remove the ANSI color</li><li>wc - count lines</li></ul><h2 id="async-jobs" tabindex="-1"><a class="header-anchor" href="#async-jobs" aria-hidden="true">#</a> async jobs</h2><p><a href="/en/doc/async.html" class="">async</a> can be handy when a problem is hardly to reproduce in the production environment, e.g. one <code>watch</code> condition may happen only once in one single day.</p><ul><li>job control - use <code>&gt;</code> to redirect result into the log file, use <code>&amp;</code> to put the job to the background. Job keeps running even if the session is disconnected (the session lifecycle is 1 day by default)</li><li>jobs - list all jobs</li><li>kill - forcibly terminate the job</li><li>fg - bring the suspend job to the foreground</li><li>bg - put the job to run in the background</li></ul><h2 id="basic-arthas-commands" tabindex="-1"><a class="header-anchor" href="#basic-arthas-commands" aria-hidden="true">#</a> Basic Arthas Commands</h2><ul><li><a href="/en/doc/base64.html" class="">base64</a> - Encode and decode using Base64 representation.</li><li><a href="/en/doc/cat.html" class="">cat</a> - Concatenate and print files</li><li><a href="/en/doc/cls.html" class="">cls</a> - clear the screen</li><li><a href="/en/doc/echo.html" class="">echo</a> - write arguments to the standard output</li><li><a href="/en/doc/grep.html" class="">grep</a> - Pattern searcher</li><li><a href="/en/doc/help.html" class="">help</a> - display Arthas help</li><li><a href="/en/doc/history.html" class="">history</a> - view command history</li><li><a href="/en/doc/keymap.html" class="">keymap</a> - keymap for Arthas keyboard shortcut</li><li><a href="/en/doc/pwd.html" class="">pwd</a> - Return working directory name</li><li><a href="/en/doc/quit.html" class="">quit/exit</a> - exit the current Arthas session, without effecting other sessions</li><li><a href="/en/doc/reset.html" class="">reset</a> - reset all the enhanced classes. All enhanced classes will also be reset when Arthas server is closed by <code>stop</code></li><li><a href="/en/doc/session.html" class="">session</a> - display current session information</li><li><a href="/en/doc/stop.html" class="">stop</a> - terminate the Arthas server, all Arthas sessions will be destroyed</li><li><a href="/en/doc/tee.html" class="">tee</a> - Copies standard input to standard output, making a copy in zero or more files.</li><li><a href="/en/doc/version.html" class="">version</a> - print the version for the Arthas attached to the current Java process</li></ul></div><!--[--><!--]--></div><footer class="page-meta right-menu-padding" data-v-e0e60120><div class="meta-item edit-link"><a class="external-link meta-item-label" href="https://github.com/alibaba/arthas/edit/master/site/docs/en/doc/commands.md" rel="noopener noreferrer" target="_blank" aria-label="Edit this page on GitHub"><!--[--><!--]--><span>Edit this page on GitHub</span><span><svg class="external-link-icon" xmlns="http://www.w3.org/2000/svg" aria-hidden="true" focusable="false" x="0px" y="0px" viewbox="0 0 100 100" width="15" height="15"><path fill="currentColor" d="M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z"></path><polygon fill="currentColor" points="45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9"></polygon></svg><span class="external-link-icon-sr-only">open in new window</span></span><!--[--><!--]--></a></div><div class="meta-item last-updated"><span class="meta-item-label">Last Updated: </span><!----></div><div class="meta-item contributors"><span class="meta-item-label">Contributors: </span><span class="meta-item-info"><!--[--><!--[--><span class="contributor" title="email: hengyunabc@gmail.com">hengyunabc</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: i@fatpandac.com">Fatpandac</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: arteevraina@gmail.com">Arteev Raina</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: LHearen@126.com">Hearen</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: lhearen@gmail.com">LHearen</span><!--[-->, <!--]--><!--]--><!--[--><span class="contributor" title="email: ian.luo@gmail.com">beiwei30</span><!----><!--]--><!--]--></span></div></footer><nav class="page-nav right-menu-padding" data-v-e0e60120><p class="inner"><!----><span class="next"><a href="/en/doc/web-console.html" class="" aria-label="Web Console"><!--[--><!--]--> Web Console <!--[--><!--]--></a></span></p></nav><!--[--><!--]--></main><!--]--></div><!----><!--]--></div>
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