centos 自动补全

首先安装bash_completion,

./configure

sudo make

sudo make install

http://bash-completion.alioth.debian.org/

然后打开主目录下的 .bashrc

# Use bash-completion, if available
[[ $PS1 && -f /usr/share/bash-completion/bash_completion ]] && \
    . /usr/share/bash-completion/bash_completion