Linux 重命名命令自制详细介绍
<p><strong>Linux 重命名命令</strong></p>
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相比于Windows上的ren命名，Linux还真的是没有一个特定的重命名的命令。（虽然可以间接的使用mv来实现）。下面我就来自己写一个简单的重命名命令。</p>
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准备工作</p>
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操作系统： Linux内核的系统都可以</li>
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Shell：我用的系统默认的bash,（其实这个无所谓了）</li>
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基础： 了解关于shell脚本的基本的语法即可。</li>
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代码实现</p>
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<code class="bash preprocessor bold">#!/bin/bash</code>
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<code class="bash comments">#filename: rename.sh</code>
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<code class="bash comments">#description: rename file or directory by batch</code>
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<code class="bash comments">#attention: when rename directory,please end them both with '/'</code>
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<code class="bash plain">oldname=$1</code>
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<code class="bash plain">newname=$2</code>
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<code class="bash functions">mv</code> <code class="bash plain">$oldname $newname</code>
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<code class="bash keyword">if</code> <code class="bash plain">[ $? -</code><code class="bash keyword">eq</code> <code class="bash plain">0 ];</code><code class="bash keyword">then</code>
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<code class="bash spaces"> </code><code class="bash functions">echo</code> <code class="bash plain">Rename Success;</code>
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<code class="bash keyword">else</code>
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<code class="bash spaces"> </code><code class="bash functions">echo</code> <code class="bash plain">Rename Failed!;</code>
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<code class="bash keyword">fi</code>
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使用分析</p>
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关于这个命令的使用，有以下要进行讨论的地方。</p>
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首先：</p>
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我们需要赋予此文件以执行权限，否则只能通过shell解释器间接的执行了。</p>
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<code class="bash functions">chmod</code> <code class="bash plain">755 rename.sh</code>
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然后：</p>
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是关于位置变量的介绍以及使用。$0代表本可执行文件，如./rename.sh</p>
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$1: 指的是执行此命令时的第一个参数</li>
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$2: 指的是执行此命令时的第二个参数</li>
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$? 为上一条命令执行成功与否的返回值，成功则返回0，否则不为0</li>
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最后：</p>
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然后到了最重要的一步了，那就是参数使用的时候需要注意：</p>
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单文件：对于单文件只需要注意文件名称即可<br>
目录： 对于目录文件，两个参数的末尾必须都加上'/'，否则会出错。这是由于mv指令默认的要求。</p>
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<strong>使用方式示例</strong></p>
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这里可以把这条命令的路径添加到我们的环境变量中，这样我们就可以不敲此命令的完整的路径就可以很好的执行了。方法如下：</p>
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<code class="bash functions">export</code> <code class="bash plain">PATH=</code><code class="bash string">"$PATH"</code><code class="bash plain">:</code><code class="bash string">"/home/mark/temp/myscripts/rename.sh"</code>
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<code class="bash comments"># 我的rename.sh路径如上所示</code>
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<code class="bash comments"># 对单文件</code>
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<code class="bash plain">rename.sh temp.txt tmp.txt</code>
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<code class="bash comments"># 对目录文件</code>
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<code class="bash plain">rename.sh directory1/ directory2/</code>
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感谢阅读，希望能帮助到大家，谢谢大家对本站的支持！</p>
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