bin/colortest

   1 #!/bin/bash
   2 # https://tldp.org/HOWTO/Bash-Prompt-HOWTO/x329.html
   3 #
   4 #   This file echoes a bunch of color codes to the
   5 #   terminal to demonstrate what's available.  Each
   6 #   line is the color code of one forground color,
   7 #   out of 17 (default + 16 escapes), followed by a
   8 #   test use of that color on all nine background
   9 #   colors (default + 8 escapes).
  10 #
  11
  12 T='gYw'   # The test text
  13
  14 echo -e "\n                 40m     41m     42m     43m\
  15      44m     45m     46m     47m";
  16
  17 for FGs in '    m' '   1m' '  30m' '1;30m' '  31m' '1;31m' '  32m' \
  18            '1;32m' '  33m' '1;33m' '  34m' '1;34m' '  35m' '1;35m' \
  19            '  36m' '1;36m' '  37m' '1;37m';
  20   do FG=${FGs// /}
  21   echo -en " $FGs \033[$FG  $T  "
  22   for BG in 40m 41m 42m 43m 44m 45m 46m 47m;
  23     do echo -en "$EINS \033[$FG\033[$BG  $T  \033[0m";
  24   done
  25   echo;
  26 done
  27 echo