Mac OS X 修复问题： “readlink: illegal option -- f”

本人在Mac 平台遇到问题：

readlink: illegal option -- fusage: readlink [-n] [file ...]

找到如下简单的解决方案：

1. 安装 brew（如果没有安装的情况下）；

2. 执行 :

brew install coreutils

3. 用greadlink命令替代代readlink命令。

在命令行中输入: 

greadlink --help

查看greadlink帮助文档:

Usage: greadlink [OPTION]... FILE...Print value of a symbolic link or canonical file name  -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  -n, --no-newline              do not output the trailing delimiter  -q, --quiet,  -s, --silent                  suppress most error messages (on by default)  -v, --verbose                 report error messages  -z, --zero                    end each output line with NUL, not newline      --help     display this help and exit      --version  output version information and exitGNU coreutils online help: <http://www.gnu.org/software/coreutils/>Report readlink translation bugs to <http://translationproject.org/team/>Full documentation at: <http://www.gnu.org/software/coreutils/readlink>or available locally via: info '(coreutils) readlink invocation'

参考链接：

http://biercoff.com/fixing-readlink-illegal-option-f-error-on-a-mac/