nice simple way to use colors in shell scripts

color-msg.sh

#! /bin/bash
# Courtesy of https://github.com/thought-machine/please/blob/master/bootstrap.sh
# See for example http://man7.org/linux/man-pages/man4/console_codes.4.html
# for more ANSI colors

function notice {
    >&2 echo -e "\033[32m$1\033[0m"
}

function warn {
    >&2 echo -e "\033[33m$1\033[0m"
}

# example usage
# note: requires the arguments to be quoted so that it becomes only 1
notice "as a notice: Building Please..."
warn "as a warn: Building Please..."