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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">在新窗口打开</span></span><!--[--><!--]--></a><!----></li><li><a href="/doc/contact-us.md" class="sidebar-item" aria-label="QQ群/钉钉群"><!--[--><!--]--> QQ群/钉钉群 <!--[--><!--]--></a><!----></li><!--]--></ul></li><!--]--></ul><!--[--><!--]--></aside><!--]--><!--[--><main class="page" data-v-fdd717e0><!--[--><!--]--><div class="right-menu-padding theme-default-content" data-v-fdd717e0><!--[--><!--]--><div class="right-menu-wrapper" data-v-fdd717e0 data-v-2b64a081><div class="right-menu-margin" data-v-2b64a081><div class="right-menu-title" data-v-2b64a081>目录</div><div class="right-menu-content" data-v-2b64a081><!--[--><!--]--></div></div></div><div data-v-fdd717e0><h1 id="arthas-后台异步任务" tabindex="-1"><a class="header-anchor" href="#arthas-后台异步任务" aria-hidden="true">#</a> Arthas 后台异步任务</h1><p><a href="https://arthas.aliyun.com/doc/arthas-tutorials?language=cn&id=case-async-jobs" target="_blank" rel="noopener noreferrer"><code>后台异步任务</code>在线教程<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">在新窗口打开</span></span></a></p><p>arthas 中的后台异步任务，使用了仿 linux 系统任务相关的命令。<a href="https://ehlxr.me/2017/01/18/Linux-%E4%B8%AD-fg%E3%80%81bg%E3%80%81jobs%E3%80%81-%E6%8C%87%E4%BB%A4/" target="_blank" rel="noopener noreferrer">linux 任务相关介绍<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">在新窗口打开</span></span></a>。</p><h2 id="_1-使用-在后台执行任务" tabindex="-1"><a class="header-anchor" href="#_1-使用-在后台执行任务" aria-hidden="true">#</a> 1. 使用&在后台执行任务</h2><p>比如希望执行后台执行 trace 命令，那么调用下面命令</p><div class="language-bash ext-sh line-numbers-mode"><pre class="language-bash"><code>trace Test t <span class="token operator">&</span>
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