term_colors.sh

#!/bin/bash
#Background
for clbg in {40..47} {100..107} 49 ; do
  #Foreground
  for clfg in {30..37} {90..97} 39 ; do
    #Formatting
    for attr in 0 1 2 4 5 7 ; do
      #Print the result
      echo -en "\e[${attr};${clbg};${clfg}m ^[${attr};${clbg};${clfg}m \e[0m"
    done
    echo #Newline
  done
done