#!/bin/bash

ncolors=${1:-$(tput colors)}

echo "showing $ncolors ansi colors:"
for ((n = 0; n < $ncolors; n++)); do
        printf " [$n] $(tput setaf $n)"
        printf "wMwMwMwMwMwMwMwMwMwMwMwMwMwMwMwMwMwMwMwMwMwMw"
        printf "$(tput sgr0)\n"
done