Mac下的readlink没有-f参数,诸如screenfetch又会去调用readlink -f,因而每次都会出现:php

readlink: illegal option -- f
usage: readlink [-n] [file ...] 

非常烦人,解决方案以下:
1.安装coreutils:html

brew install coreutils 

2.设置环境变量,编辑~/.bash_profile,添加:ruby

export PATH="/usr/local/opt/coreutils/libexec/gnubin:$PATH" 

3.建立别名,使用greadlink替代readlink,一样是编辑~/.bash_profile,添加:bash

alias readlink=greadlink