linux expect实现登陆远程主机并执行命令示例代码
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<span><strong>示例代码：</strong></span></p>
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<code class="bash preprocessor bold">#!/bin/bash </code>
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<code class="bash functions">export</code> <code class="bash plain">cmd=$1</code>
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<code class="bash plain">expect << </code><code class="bash string">'END'</code>
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<code class="bash functions">set</code> <code class="bash plain">cmd </code><code class="bash string">"$env(cmd)"</code>
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<code class="bash plain">spawn </code><code class="bash functions">ssh</code> <code class="bash plain">root@192.168.56.1 $cmd</code>
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<code class="bash plain">expect {</code>
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<code class="bash spaces"> </code><code class="bash string">"(yes/no)?"</code> <code class="bash plain">{send </code><code class="bash string">"yes\r"</code><code class="bash plain">;exp_continue}</code>
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<code class="bash spaces"> </code><code class="bash string">"password:"</code> <code class="bash plain">{send </code><code class="bash string">"root\r"</code><code class="bash plain">;exp_continue}</code>
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<code class="bash spaces"> </code><code class="bash plain">eof</code>
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<code class="bash plain">}</code>
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<code class="bash plain">END</code>
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<span><strong>解释</strong></span></p>
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export 定义一个变量，获取$1</li>
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expect << 'END' 开始expect脚本,最后END结束</li>
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set cmd "$env(cmd)" 获取系统变量</li>
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spwan 开始一个进程</li>
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expect {} 具体的应答消息</li>
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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：https://carey.akhack.com/2017/06/16/expect登陆远程主机并执行命令/</p>
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