Show git branch in Terminal (Mac)

gistfile1.txt

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

RED="\[\033[0;31m\]"
YELLOW="\[\033[0;33m\]"
GREEN="\[\033[0;32m\]"
NO_COLOUR="\[\033[0m\]"

PS1="$GREEN\u@machine$NO_COLOUR:\w$YELLOW\$(parse_git_branch)$NO_COLOUR\$ "

In Terminal, navigate to your Users directory, e.g. /Users/Drew/

Open .bash_profile in a text editor of your choice and paste this in the file. Save and exit.

Thank you!
Line 10 should be changed to:
PS1="$GREEN\u@\h$NO_COLOUR:\w$YELLOW$(parse_git_branch)$NO_COLOUR$ "