Bash boilerplate for coloured scripts and checking for passed arguments

boilerplate.sh

#!/bin/bash

CYAN="\\033[1;36m"
GREEN="\\033[1;32m"
YELLOW="\\E[33;44m"
RED="\\033[1;31m"
RESET="\\e[0m"
MODE='blah'

if [ -z "$1" ]
  then
    echo -n -e "\n${RED}*** NO ARGUMENTS SPECIFIED! ***${RESET}\n\n"
    echo -n -e "${CYAN}Please input desired runmode for the build ${YELLOW}(test / prod)${RESET}${CYAN} : ${RESET}"
    read runmode
    MODE=$runmode
else
    MODE=$1
fi


echo -n -e "\n${CYAN}Building `basename "$PWD"` in ${YELLOW}${MODE}${RESET}${CYAN} mode...${RESET}\n"
RUNMODE=$MODE make build