shell -- 获取绝对路径

提示：扫一扫查出行
【扫一扫了解最新限行尾号】
复制提示

readlink -f <file>readlink -m <file>

会把file的相对路径转化为绝对路径

几个选项的区别：

-f, --canonicalize canonicalize by following every symlink in
every component of the given name recursively;
all but the last component must exist
-e, --canonicalize-existing canonicalize by following every symlink in
every component of the given name recursively,
all components must exist
-m, --canonicalize-missing canonicalize by following every symlink in
every component of the given name recursively,
without requirements on components existence

参考：http://stackoverflow.com/questions/3915040/bash-fish-command-to-print-absolute-path-to-a-file