#!/bin/sh RED=$(printf "\e[1;31m") NORMAL=$(printf "\e[0m") colors1() { for i in 0 1 2 3 4 5 6 7; do printf "%b" "\e[4${i}m \e[0m" done } colors2() { for i in 0 1 2 3 4 5 6 7; do printf "%b" "\e[10${i}m \e[0m" done } cat <