Show the current git branch in prompt (bash) to avoid checking the branch every time or worse use the wrong branch.

git_branch_in_prompt.sh

# Add current git branch in prompt
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="$GREEN\u@$(hostname)$NO_COLOUR:\w$YELLOW\$(parse_git_branch)$NO_COLOUR\$ "