Centos/Mac 命令自动补全

常常使用tab来补全需要的命令参数，但在最小化安装系统的时候默认不安装，由于软件在epel库中，安装时先安装epel-release，再安装bash-completion，且需要重新建立bash环境。

yum -y install epel-release
yum -y install bash-completion

brew install bash-completion

# 写入设置，具体的可以通过 brew info bash-completion 查看
vim ~/.zshrc
fpath=(/usr/local/share/zsh-completions $fpath)
plugins=(... zsh-completions)
autoload -U compinit && compinit