Shell使用小记
Shell以其稳定、高效和灵活成为系统管理员的首选。1、Shell简介：
命令行：指的是供用户输入命令的界面，其本身只是接受输入，然后把命令传递给命令解释器。
Shell：即命令解释器。本质上讲，Shell是一个程序，它在用户和操作系统之间提供一个面向行的可交互接口。用户在命令行中输入命令，运行在后台的Shell把命令转换成指令代码发送给操作系统。
常用的Shell有：BASH、TCSH Shell、Z-Shell等。BASH Shell是默认安装和使用的Shell。
2、如何打开命令行终端？
（1）ctrl+alt+t。%EF%BC%882%EF%BC%89ctrl+alt+F1~F7%E5%8F%AF%E4%BB%A5%E6%89%93%E5%BC%80%E5%91%BD%E4%BB%A4%E8%A1%8C%E6%8E%A7%E5%88%B6%E5%8F%B0%EF%BC%8CLinux%E9%BB%98%E8%AE%A4%E6%9C%897%E4%B8%AA%E6%8E%A7%E5%88%B6%E5%8F%B0%EF%BC%8C%E9%BB%98%E8%AE%A4%E6%83%85%E5%86%B5%E4%B8%8B%E5%89%8D6%E4%B8%AA%E6%8E%A7%E5%88%B6%E5%8F%B0%E6%98%AF%E5%91%BD%E4%BB%A4%E8%A1%8C%E6%8E%A7%E5%88%B6%E5%8F%B0%EF%BC%8C%E7%AC%AC7%E4%B8%AA%E5%88%99%E7%95%99%E7%BB%99X%E6%9C%8D%E5%8A%A1%E5%99%A8%E3%80%82
%EF%BC%883%EF%BC%89dash%E4%B8%AD%E6%90%9C%E7%B4%A2%E7%BB%88%E7%AB%AF%EF%BC%8C%E7%9B%B4%E6%8E%A5%E6%89%93%E5%BC%80%E3%80%82
%EF%BC%884%EF%BC%89%E6%A1%8C%E9%9D%A2%E5%9B%BE%E6%A0%87%E3%80%82
3%E3%80%81%E5%91%BD%E4%BB%A4%E8%A1%8C%E6%8F%90%E7%A4%BA%E7%AC%A6%EF%BC%9A
BASH%E4%B8%AD%E4%BB%A5%E4%B8%80%E4%B8%AA%E7%BE%8E%E5%85%83%E6%8F%90%E7%A4%BA%E7%AC%A6%E5%8F%B7%E2%80%98%24%E2%80%98%E4%BD%9C%E4%B8%BA%E6%8F%90%E7%A4%BA%E7%AC%A6%EF%BC%8C%E8%A1%A8%E7%A4%BA%E7%94%A8%E6%88%B7%E5%8F%AF%E4%BB%A5%E8%BE%93%E5%85%A5%E5%91%BD%E4%BB%A4%E4%BA%86%E3%80%82%E5%A6%82%E6%9E%9C%E6%98%AF%E4%BB%A5root%E8%BA%AB%E4%BB%BD%E6%89%A7%E8%A1%8C%E5%91%BD%E4%BB%A4%EF%BC%8C%E9%82%A3%E4%B9%88Shell%E6%8F%90%E7%A4%BA%E7%AC%A6%E5%B0%86%E6%88%90%E4%B8%BA%E2%80%99#%E2%80%98%E3%80%82%E5%9C%A8BASH%E7%9A%84%E7%BE%8E%E5%85%83%E6%8F%90%E7%A4%BA%E7%AC%A6%E5%89%8D%EF%BC%8C%E4%B8%80%E8%88%AC%E8%BF%98%E4%BC%9A%E6%9C%89%E4%B8%80%E6%AE%B5%E4%BF%A1%E6%81%AF%EF%BC%8C%E5%8C%85%E6%8B%AC%E7%94%A8%E6%88%B7%E5%90%8D%E3%80%81%E4%B8%BB%E6%9C%BA%E5%90%8D%E5%92%8C%E5%BD%93%E5%89%8D%E7%9B%AE%E5%BD%95%E3%80%82%E4%B8%80%E4%B8%AA%E5%AE%8C%E6%95%B4%E7%9A%84%E6%8F%90%E7%A4%BA%E7%AC%A6%E5%A6%82%E4%B8%8B%EF%BC%9ALewis@lewis-laptop:/home%24%E3%80%82
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