vi .bashrc

    1. PS1=""
    2. PS1="$PS1"'\[\033[32m\]'        # change to green
    3. PS1="$PS1"'\u@\h:'              # user@host:
    4. PS1="$PS1"'\[\033[36m\]'        # change color to cyan
    5. PS1="$PS1"'\w'                 # pwd
    6. PS1="$PS1"'\[\033[34m\]'        # change to blue
    7. PS1="$PS1"'`__git_ps1`'         # git branch
    8. PS1="$PS1"'\[\033[0m\]'         # change color
    9. PS1="$PS1"'$ '                  # prompt: always $