A demo of a shell script with clear coloured output

do_it.sh

#!/bin/bash

BLACK=$(tput setaf 0)
BLUE=$(tput setaf 1)
GREEN=$(tput setaf 2)
CYAN=$(tput setaf 3)
RED=$(tput setaf 4)
MAGENTA=$(tput setaf 5)
YELLOW=$(tput setaf 6)
WHITE=$(tput setaf 7)
 
BOLD=$(tput bold)
RESET=$(tput sgr0)

echo -e "$BOLD$GREEN==>$WHITE Doing something $RESET"
echo 'Output'
echo 'More output.'
echo -e "$BOLD$GREEN==>$WHITE Doing another thing $RESET"
echo 'Output'
echo 'Yet more output.'
echo -e "$BOLD$GREEN==>$WHITE Summary $RESET"
echo 'Coloured scripts are great!'