January 2023
Intermediate to advanced
458 pages
14h 16m
Chinese
Content preview from 可编程网络自动化
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32
｜
第
3
章
这只是入门级的内容
本节主要针对刚接触
Linux
的用
户（很多网络工程师和
IT
专业人士最熟悉的
是
Microsoft Windows
）。如果你对
Linux
并不陌生，那么可以放心跳过这一节。
好了，下面就从文件系统导航开始吧。
3.4.1
文件系统导航
Linux
采用的是
单根
文件系统（
single-root filesystem
），意味着所有驱动器以及
Linux
系统
中的目录和文件全都包含在单个名称空间（也就是
/
）内
。（当你看到
/
的时候，请在心中
默念“根”）。这和
Microsoft W
indows
操作系统形成了鲜明的对比，
Microsoft Windows
操
作系统中的每个驱动器都有自己的根文件系统（比如
C:\
或
D:\
）
。注意，也可以将驱动器
挂载到
W
indows
的某个目录中，但这种做法在实践中并不多见。
万物皆文件
追随
Unix
的脚步
，
Linux
将一切均视为文件。这包括存储设备（被视为块设
备）、计算机接口（如串行接口），甚至还有输入
/
输出设备。因此，包含设
备和存储的单根文件系统的重要性就提高了。
和大多数其他操作系统一样，
Linux
也使用目录（在有些操作系统中叫
文件夹
）对文件系统
中的文件进行分组。每个文件都位于某个目录中，因而也具有唯一的
路径
。为了表示文件
的路径，从根目录开始，依次列出到达该文件所经过的全部目录，目录之间用正斜线分隔。
例如，命令
ping
通常位于根目录下的
bin
目录中。因此，
ping
的路径可以写作
/bin/ping
。
换句话说，从根目录（
/
）开始
，一直到
bin/
目录，在其中找到名为 ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.