Mac下的readlink沒有-f參數,諸如screenfetch又會去調用readlink -f,因而每次都會出現:php

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

非常煩人,解決方案以下:
1.安裝coreutils:html

brew install coreutils 

2.設置環境變量,編輯~/.bash_profile,添加:ruby

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

3.建立別名,使用greadlink替代readlink,一樣是編輯~/.bash_profile,添加:bash

alias readlink=greadlink