Red prompt when ROOT

edit /root/.bashrc and add

function setprompt
{
local RED="\[$(tput setaf 1)\]"
local RESET="\[$(tput sgr0)\]"
if [ `id -u` = 0 ] # check if user is root
then
PS1="$RED[\u@\h:\W]$RESET "
else
PS1="[\u@\h:\W]$RESET "
fi
}
setprompt