1.下载item2
2.使用brew来安装zsh
brew install zsh
3. 若未安装brew，安装命令：
ruby -e "$(curl -fsSL [https://raw.githubusercontent.com/Homebrew/install/master/install](https://raw.githubusercontent.com/Homebrew/install/master/install))"
4.设置zsh为默认
在/etc/shells文件末尾添加
/usr/local/bin/zsh
5.执行：
chsh -s /usr/local/bin/zsh
6.最后记得将~/.bash_prorile 或者 ~/.profile等配置拷贝到 ~/.zshrc中。
安装oh-my-zsh
自动安装:
curl -L [https://github.com/robbyrussell/oh-my-zsh/raw/master/tools/install.sh](https://github.com/robbyrussell/oh-my-zsh/raw/master/tools/install.sh) | sh[http://www.cnblogs.com/derrck/p/5337539.html](http://www.cnblogs.com/derrck/p/5337539.html)
