#!/usr/bin/env bash # Print out escape sequences usable for coloured text on tty. printf 'Colour escapes are %s\n' '\e[${value};...;${value}m' printf 'Values 30..37 are \e[33mforeground colours\e[m\n' printf 'Values 40..47 are \e[43mbackground colours\e[m\n' printf 'Value 1 gives a \e[1mbold look\e[m\n' printf 'Value 2 gives a \e[2mdim look\e[m\n' printf 'Value 3 gives a \e[3mitalic look\e[m\n' printf 'Value 4 gives a \e[4munderlined look\e[m\n' printf 'Value 5 gives a \e[5mblinking look\e[m\n\n' # foreground colours for fgc in {30..37}; do # background colours for bgc in {40..47}; do fgc=${fgc#37} # white bgc=${bgc#40} # black vals="${fgc:+$fgc;}${bgc}" vals=${vals%%;} seq0="${vals:+\e[${vals}m}" printf " %-9s" "${seq0:-(default)}" echo -e -n " ${seq0}TEXT\e[m" echo -e -n " \e[${vals:+${vals+$vals;}}1mBOLD\e[m" echo -e -n " \e[${vals:+${vals+$vals;}}2mDIM\e[m" echo -e -n " \e[${vals:+${vals+$vals;}}3mITA\e[m" echo -e -n " \e[${vals:+${vals+$vals;}}4mUND\e[m" echo -e -n " \e[${vals:+${vals+$vals;}}5mBLI\e[m" done echo; echo done