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#!/bin/bash
#
# Based on Daniel Crisman's ANSI color chart script from
# The Bash Prompt HOWTO: 6.1. Colours
# http://www.tldp.org/HOWTO/Bash-Prompt-HOWTO/x329.html
#
# This function echoes a bunch of color codes to the
# terminal to demonstrate what's available. Each
# line is the color code of one forground color,
# out of 17 (default + 16 escapes), followed by a
# test use of that color on all nine background
# colors (default + 8 escapes).
set -euo pipefail
T='gYw' # The test text
echo -e "\n def 40m 41m 42m 43m 44m 45m 46m 47m";
for FGs in ' m' ' 1m' ' 30m' '1;30m' ' 31m' '1;31m' ' 32m' \
'1;32m' ' 33m' '1;33m' ' 34m' '1;34m' ' 35m' '1;35m' \
' 36m' '1;36m' ' 37m' '1;37m';
do FG=${FGs// /}
echo -en " $FGs \033[$FG $T "
for BG in 40m 41m 42m 43m 44m 45m 46m 47m;
do echo -en "\033[$FG\033[$BG $T \033[0m";
done
echo;
done
echo
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