Bash colored prompt

10-colored-prompt.sh

# Set up a colored prompt in Bash with green (32) and red (31) colors for regular and root users, respectively,
# instead of the standard:
# PS1='[\u@\h \W]\$ '
# 
# This prompt also allows Bash to take its length into consideration correctly 
# for command line start offset calculation.
# Place this file in /etc/bashrc.d or wherever feasible for inclusion in ~/.bashrc .

_color='32'
_chr=':'
if [ "$USER" = "root" ]; then
    _color='31'
    _chr='#'
fi
PS1="\001\e[0;${_color}m\002\h \W${_chr}\001\e[;m\002 "
unset _color
unset _chr