Gentoo style PS1
         <code>if [[ ${EUID} == 0 ]] ; then
                PS1='\[\033[01;31m\]\h\[\033[01;34m\] \W \$\[\033[00m\] '
        else
                PS1='\[\033[01;32m\]\u@\h\[\033[01;34m\] \w \$\[\033[00m\] '
        fi
        </code>