Add Git Branch Name to Bash Prompt

1. Add the following lines to your ~/.bashrc file:

   parse_git_branch() {
       git branch 2> /dev/null | sed -e '/^[^*]/d' -e 's/* \(.*\)/ (\1)/'
   }
   
   export PS1="\u@\h \[\033[32m\]\w\[\033[33m\]\$(parse_git_branch)\[\033[00m\] $ "
   

   Where:

   • \u@\h \[\033[32m\] displays the user, host name, and its color.
   • \w\[\033[33m\] shows the current working directory and its color.
   • \$(parse_git_branch)\[\033[00m\] displays the git branch name and its color.

   Typically, I only display the current working directory and the git branch name without showing the user and hostname.

2. Run the command source ~/.bashrc to apply the changes.

Source:
Coderwall