$ yaourt -S zsh aur/oh-my-zsh-git
Run for the first time, zsh will prompt for configuration. Just ignore it, because we could use oh-my-zsh to help later.
$ zsh
Here is how oh-my-zsh to comes to help:
$ cp /usr/share/oh-my-zsh/zshrc ~/.zshrc
$ chsh -s $(which zsh)
原文：http://www.cnblogs.com/victl/p/4496272.html