Linux下Python脚本自启动与定时任务详解
<p><span><strong>前言</strong></span></p>
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最近同事问了一个关于Python脚本自启动与定时任务的问题，发现很多的朋友对这块都不是特别的熟悉，所以本文主要给大家介绍的是关于Linux下Python脚本自启动与定时任务的相关内容，分享出来供大家参考学习，话不多说了，来一起看看详细的介绍：</p>
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<span><strong>一、让Python随Linux开机自动运行</strong></span></p>
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准备好要自启的脚本auto.py</p>
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用root权限编辑以下文件</p>
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<code class="bash functions">sudo</code> <code class="bash plain">vim </code><code class="bash plain">/ect/rc</code><code class="bash plain">.</code><code class="bash functions">local</code>
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在exit 0上面编辑启动脚本的命令</p>
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<code class="bash plain">/usr/bin/python3</code><code class="bash plain">.5 </code><code class="bash plain">/home/edgar/auto</code><code class="bash plain">.py > </code><code class="bash plain">/home/edgar/auto</code><code class="bash plain">.log</code>
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最后重启Linux，脚本就能自动运行并打印日志了。</p>
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<span><strong>二、让Python脚本定时启动</strong></span></p>
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准备好定时启动的脚本auto.py</p>
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用root权限编辑以下文件</p>
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<code class="bash functions">sudo</code> <code class="bash plain">vim </code><code class="bash plain">/etc/crontab</code>
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在文件末尾添加以下命令</p>
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<code class="bash plain">2 * * * * root </code><code class="bash plain">/usr/bin/python3</code><code class="bash plain">.5 </code><code class="bash plain">/home/edgar/auto</code><code class="bash plain">.py > </code><code class="bash plain">/home/edgar/auto</code><code class="bash plain">.log</code>
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以上代码的意思是每隔两分钟执行一次脚本并打印日志。</p>
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<span><strong>三、crontab编写解释</strong></span></p>
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基本格式</p>
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<code class="plain plain">* * * * * user command</code>
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<code class="plain plain">分 时 日 月 周 用户 命令</code>
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<span><strong>四、举例说明</strong></span></p>
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1、每分钟执行一次</p>
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<code class="bash plain">* * * * * user </code><code class="bash functions">command</code>
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2、每隔2小时执行一次</p>
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<code class="bash plain">* *</code><code class="bash plain">/2</code> <code class="bash plain">* * * user </code><code class="bash functions">command</code> <code class="bash plain">(/表示频率)</code>
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3、每天8:30分执行一次</p>
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<code class="bash plain">30 8 * * * user </code><code class="bash functions">command</code>
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4、每小时的30和50分各执行一次</p>
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<code class="bash plain">30,50 * * * * user </code><code class="bash functions">command</code><code class="bash plain">（,表示并列）</code>
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4、每个月的3号到6号的8:30执行一次</p>
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<code class="bash plain">30 8 3-6 * * user </code><code class="bash functions">command</code> <code class="bash plain">（-表示范围）</code>
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5、每个星期一的8:30执行一次</p>
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<code class="bash plain">30 8 * * 1 user </code><code class="bash functions">command</code> <code class="bash plain">（周的范围为0-7,0和7代表周日）</code>
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<span><strong>总结</strong></span></p>
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以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流，谢谢大家对的支持。</p>
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原文链接：http://www.jianshu.com/p/5cd74add11ba</p>
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