用绝对路径改造路径链接

Question

在我的Linux机器上：

$ pwd
/usr/share/file/sharedspace

$ ls -l
lrwxrwxrwx. 1 system system 18 Aug 26 18:07 file.txt -> ../../original

$ rm file.txt

如何使用绝对路径名来修改此路径链接？

Answer 1

您正在查找带有readlink标志的-f命令，以解析完整路径：

$ pwd
/usr/share/file/sharedspace

$ ls -l
total 0
lrwxrwxrwx 1 root root 14 Jul 25 12:25 file.txt -> ../../original

$ readlink -f file.txt 
/usr/share/original

来自man readlink：

       -f, --canonicalize
              canonicalize by following every symlink in every  component  of
              the given name recursively; all but the last component must ex‐
              ist