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<h1 id="cat">cat</h1><p>显示文件的内容。</p>

<h2 id="补充说明">补充说明</h2><p>cat命令连接文件并打印到标准输出设备上，cat经常用来显示文件的内容，类似于下的type命令。</p>

<li>-s或--squeeze-blank：当遇到有连续两行以上的空白行，就代换为一行的空白行； </li>

<li>-A：显示不可打印字符，行尾显示“$”； </li>

<li>-e：等价于&quot;-vE&quot;选项； </li>

<h2 id="例子">例子</h2><pre><code class="lang-bash">cat m1 <span class="hljs-comment"># （在屏幕上显示文件ml的内容） </span>

cat m1 m2 <span class="hljs-comment"># （同时显示文件ml和m2的内容） </span>