安装
/usr/bin/ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
更新
brew update
卸载
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
参考
http://superuser.com/questions/203707/how-to-uninstall-homebrew-mac-os-x-package-manager
