ubuntu tab键不能自动补全命令的参数

/etc/bash.bashrc 里面有这几行语句

#enable bash completion in interactive shells

# if ! shopt -oq posix; then

 # if [ -f /usr/share/bash-completion/bash_completion ]; then

 #   . /usr/share/bash-completion/bash_completion

 # elif [ -f /etc/bash_completion ]; then

 #   . /etc/bash_completion

 # fi

# fi

去掉注释

if ! shopt -oq posix; then

 if [ -f /usr/share/bash-completion/bash_completion ]; then

   . /usr/share/bash-completion/bash_completion

 elif [ -f /etc/bash_completion ]; then

   . /etc/bash_completion

 fi

fi

.   /etc/bash.bashrc就ok了

本文转自神ge 51CTO博客，原文链接:http://blog.51cto.com/12218412/1885427