My Mac Terminal bash prompt.

.bash_prompt

# Set the prompt

# This will show something like:
#
# chris@chris-ubuntu in ~
# ›
PS1='\n\[\033[01;35m\]\u@\h\[\033[00m\] in \[\033[01;34m\]\w\[\033[00m\]\n› '

case "$TERM" in
xterm*|rxvt*)
  PROMPT_COMMAND='set_tab_title'
	;;
*)
	;;
esac

# set tab name to basename or git repo (branch) if in git dir
function set_tab_title() {
	GIT_PS1_SHOWDIRTYSTATE=true
	local GIT_PS1=$(__git_ps1)
	if [ "$GIT_PS1" ]; then
		printf "\e]1;$(greadlink -m $(__gitdir)/../ | xargs basename)$GIT_PS1\a"
	else
		printf "\e]1;$(basename $(pwd))\a"
	fi
}