[TOC] ## 概述 此命令用于对参数进行自动补全,如 `git cl` 补全为`git clone` ## 安装 ``` // centos > yum -y install bash-completion > source /etc/profile.d/bash_completion.sh // ubuntu > sudo apt-get install -y bash-completion // 找到bash_completion,进行配置 // [ -f /usr/local/etc/bash_completion ] && . /usr/local/etc/bash_completion ```