Display GIT branch in linux

It is useful to have the current Git branch appear at user prompt. This can be done for Centos Linux BASH by updating the user's configuration file .bashrc in the user's home directory.

Add these lines

git_branch() {

    git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/(\1)/'

}

export PS1="\u@\h \[\e[32m\]\w \[\e[91m\]\$(git_branch)\[\e[00m\]$ "

This will produce a user prompt like this

login@hostname current_directory(git.branch.name)$