摘要: $ vi ~/.bashrc# enable programmable completion features # (you don't need to enable this, if it's already enabled in # /etc/bash.bashrc and /etc/profile# sources /etc/bash.bashrc).if [ -f /etc/bash_completion ]; then . /etc/bash_completionfi若发现/etc/bash_completion文件不存在， 则安装bash-completion$ s阅读全文