Shell color test

colors.sh

#!/bin/sh

# use `printf "\033[{{STYLE}};{{FOREGROUND_COLOR}};{{BACKGROUND_COLOR}}m"` to set the color of all the output from the shell
# use `printf "\033[0m"` to reset

for attr in 0 1 4 5 7 ; do
    echo "----------------------------------------------------------------"
    printf "ESC[%s;Foreground;Background - \n" $attr
    for fore in 30 31 32 33 34 35 36 37; do
        for back in 40 41 42 43 44 45 46 47; do
            printf '\033[%s;%s;%sm %02s;%02s  ' $attr $fore $back $fore $back
        done
    printf '\n'
    done
    printf '\033[0m'
done
exit