我错误地输入了一个命令 cd// 而不是 cd/，而不是像我期望的那样得到错误，shell (Bash) 显示了提示好像我在//目录:-
<username>@<hostname>://$
<username>@<hostname>://$ pwd
//
列出目录的内容，说明与/相同。
那么cd//到底是做什么的，和cd/有什么区别呢？
最佳答案
其实没什么意思，被忽略了。
来自 Bash FAQ E10: :
E10) Why does 'cd //' leave $PWD as '//'?
POSIX.2, in its description of 'cd', says that three or more leading slashes may be replaced with a single slash when canonicalizing the current working directory.
This is, I presume, for historical compatibility. Certain versions of Unix, and early network file systems, used paths of the form //hostname/path to access 'path' on server 'hostname'.
还有 Unix standards状态:
A pathname that begins with two successive slashes may be interpreted in an implementation-defined manner, although more than two leading slashes shall be treated as a single slash.
关于linux - 双斜杠//in `cd//` 在 Linux 中是什么意思？，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/20690828/