color prompt

.bashrc

# add to ~/.bashrc

if ${use_color} ; then
	# Enable colors for ls, etc.  Prefer ~/.dir_colors #64489
	if type -P dircolors >/dev/null ; then
		if [[ -f ~/.dir_colors ]] ; then
			eval $(dircolors -b ~/.dir_colors)
		elif [[ -f /etc/DIR_COLORS ]] ; then
			eval $(dircolors -b /etc/DIR_COLORS)
		fi
	fi

	if [[ ${EUID} == 0 ]] ; then
		PS1='\[\033[01;31m\]server.example.com\[\033[01;34m\] \W \$\[\033[00m\] '
	else
		PS1='\[\033[01;32m\]\u@\h\[\033[01;34m\] \w \$\[\033[00m\] '
	fi

	alias ls='ls --color=auto'
	alias grep='grep --colour=auto'
else
	if [[ ${EUID} == 0 ]] ; then
		# show root@ when we don't have colors
		PS1='\u@\h \W \$ '
	else
		PS1='\u@\h \w \$ '
	fi
fi