linux下cat命令连接文件并打印到标准输出设备上
<p><span><strong>前言</strong></span></p>
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cat命令用于连接文件并打印到标准输出设备上（屏幕或 > fileName 到另一个文件），下面这篇文章将详细介绍这个命令，感兴趣的朋友们下面来一起看看吧。</p>
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命令分类：文件管理</p>
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<span><strong>cat语法格式</strong></span></p>
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<code class="plain plain">cat [参数] [文件名] </code>
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<code class="plain plain">cat [-AbeEnstTuv] [--help] [--version] fileName</code>
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<span><strong>参数</strong></span></p>
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<code class="plain plain">-A, --show-all 等价于 -vET</code>
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<code class="plain plain">-b, --number-nonblank 对非空输出行编号</code>
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<code class="plain plain">-e 等价于 -vE</code>
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<code class="plain plain">-E, --show-ends 在每行结束处显示 $</code>
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<code class="plain plain">-n, --number 对输出的所有行编号</code>
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<code class="plain plain">-s, --squeeze-blank 不输出多行空行</code>
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<code class="plain plain">-t 与 -vT 等价</code>
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<code class="plain plain">-T, --show-tabs 将跳 字符显示为 ^I</code>
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<code class="plain plain">-u (被忽略)</code>
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<code class="plain plain">-v, --show-nonprinting 使用 ^ 和 M- 引用，除了 LFD 和 TAB 之外</code>
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<code class="plain plain">--help 显示此帮助信息并离开</code>
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<span><strong>示例</strong></span></p>
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一次显示整个文件并添加行号</p>
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<code class="bash functions">cat</code> <code class="bash plain">-n config.js</code>
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从键盘创建一个文件（只能创建文件，不能编辑）</p>
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<code class="bash functions">cat</code> <code class="bash plain">> newFile</code>
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几个文件合并为一个文件</p>
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<code class="bash functions">cat</code> <code class="bash plain">file1 file2 > newFile</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：https://itbilu.com/linux/man/EJe2hbX.html</p>
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