Generates a table of the `tput setaf` and `tput setab` colors in bash. Based on Daniel Crisman's script from the Bash Prompt HOWTO on Colours: http://tldp.org/HOWTO/Bash-Prompt-HOWTO/x329.html

colors.sh

#!/bin/bash
 
T='gYw'   # The test text
 
for FGs in 0 1 2 3 4 5 6 7;
  do FG=${FGs// /}
  echo -en "     $FGs $(tput setaf $FG) $T "
  for BG in 0 1 2 3 4 5 6 7;
    do echo -en "$EINS $(tput setaf $FG)$(tput setab $BG) $T $(tput sgr0)";
  done
  echo;
 
  echo -en "bold $FGs $(tput bold; tput setaf $FG) $T "
  for BG in 0 1 2 3 4 5 6 7;
    do echo -en "$EINS $(tput bold; tput setaf $FG)$(tput setab $BG) $T $(tput sgr0)";
  done
  echo;
done

Nice!