# Set the title bar to user@host: pwd
_TITLE_BAR="\u@\h: \w"
_SET_TITLE_BAR="\[\e]0;$_TITLE_BAR\a\]"
# Shorten $HOME to ~ in PWD
_pwd_home () {
	if [[ "$PWD" =~ ^"$HOME"(/|$) ]]; then
		echo "~${PWD#$HOME}"
	else
		echo $PWD
	fi
}
# Shorten path dir names
_pwd () {
	DIR=$(_pwd_home)
	[ "$DIR" != "/" ] && [ "$DIR" != "~" ] && printf '%s/' $(dirname "$DIR" | tr / '\n' | cut -c-1)
	printf "$(basename "$DIR")"
}
_DIR='$(_pwd)'
# Color codes
_GREEN="\[\033[1;32m\]"
_DIM="\[\e[92;2m\]"
_RESET="\[\e[0m\]"
# Nested shell level
_SHLVL=$(printf '\$%.0s' $(seq 1 $SHLVL))
# Build prompt
export PS1="$_SET_TITLE_BAR$_DIM[\A \u@\h:$_RESET$_GREEN$_DIR$_RESET$_DIM]$_SHLVL$_RESET "