linux下显示git当前分支

1 vim ~/.bashrc
2 在文件加入

function git_branch {  branch="`git branch 2>/dev/null | grep "^\*" | sed -e "s/^\*\ //"`"  if [ "${branch}" != "" ];then      if [ "${branch}" = "(no branch)" ];then          branch="(`git rev-parse --short HEAD`...)"      fi      echo " ($branch)"  fi}export PS1='\u@\h \[\033[01;36m\]\W\[\033[01;32m\]$(git_branch)\[\033[00m\] \$ '

3 source ~/.bashrc
4 展示效果如下：