Bash Ansi Colors

ansi-colors.sh

#!/bin/bash

## Ansi Colors

N="$(printf '\033[')" x=30

for a in Bl R G Y B M C W # 4-bit Black Red Green Yellow Blue Magenta Cyan White
do eval $a='$N'"'"$((   x))"m'" \
        b$a='$N'"'"$((60+x))"m'" \
    ${a}bg='$N'"'"$((10+x))"m'" \
    b${a}bg='$N'"'"$((70+x))"m'"        # bX=bright Xbg=background bXbg=brgt bgnd
    x=$((x+1))
done

N="${N}0m"

printf "$Y${Gbg}I am yellow on green.$N\n"