Los códigos de color en Bash

Fuente: Redcode

wget dev.redcodenetwork.ro/public/shell/color-bash.sh
chmod +x color-bash.sh
./color-bash.sh

#!/bin/bash

# prints a color table of 8bg * 8fg * 2 states (regular/bold)
echo
echo Table for 16-color terminal escape sequences.
echo Replace ESC with \\033 in bash.
echo
echo "Background | Foreground colors"
echo "---------------------------------------------------------------------"
for((bg=40;bg<=47;bg++)); do
    for((bold=0;bold<=1;bold++)) do
        echo -en "\033[0m"" ESC[${bg}m   | "
        for((fg=30;fg<=37;fg++)); do
            if [ $bold == "0" ]; then
                echo -en "\033[${bg}m\033[${fg}m [${fg}m  "
            else
                echo -en "\033[${bg}m\033[1;${fg}m [1;${fg}m"
            fi
        done
        echo -e "\033[0m"
    done
    echo "--------------------------------------------------------------------- "
done

echo
echo