在类Unix系统中，圆形符号链接有什么作用? [英] What are circular symlinks in Unix-like systems used for?

问题描述

我正在浏览Linux机器上的目录，在做详细列表时，我注意到一个链接指向自己，例如:

I was browsing a directory on a Linux machine, and when doing a detailed listing I noticed that a link is pointing to itself, for example:

somelink -> /path/to/directory/somelink

我想知道这样做的原因是什么?

I am wondering what is the reason for doing such a thing?

推荐答案

如果 somelink 位于/path/to/directory 中，则这是无效的符号链接.如果尝试访问它，文件系统将给您一个错误(可能是太多级别的符号链接 *之类的东西).创建它时可能是拼写错误(或其他错误)，或者符号链接以某种方式移动并最终链接到其自身.

If the somelink is in /path/to/directory then this is an invalid symlink. If you try to access it, the filesystem will give you an error (probably something like too many levels of symbolic links*). It could have been a typo (or some other mistake) when it was created, or the symlink got moved somehow and ended up linking to itself.

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