bin/colortable

   1 #!/bin/bash
   2 # Usage: colortable [-x]
   3 #
   4 # Print a color table of ANSI colors (normal+bright) to demonstrate what
   5 # colors are available. Each line is the color code of one foreground
   6 # color, out of 17 (default + 16 escapes), followed by a test use of that
   7 # color on all nine background colors (default + 8 escapes).
   8 #
   9 # (Based on: http://www.faqs.org/docs/Linux-HOWTO/Bash-Prompt-HOWTO.html)
  10
  11 T='gYw'   # The test text
  12 bright=0  # Don't print bright colors by default
  13 test "$1" = "-x" -o "$1" = "-a" && bright=1
  14
  15 # Standard background colors
  16 echo
  17 echo -e "                 40m     41m     42m     43m     44m     45m     46m     47m";
  18 for FGs in  '    m' '   1m' \
  19             '  30m' '  90m' '1;30m' \
  20             '  31m' '  91m' '1;31m' \
  21             '  32m' '  92m' '1;32m' \
  22             '  33m' '  93m' '1;33m' \
  23             '  34m' '  94m' '1;34m' \
  24             '  35m' '  95m' '1;35m' \
  25             '  36m' '  96m' '1;36m' \
  26             '  37m' '  97m' '1;37m'; do
  27   FG=${FGs// /}
  28   if [ "${FG:0:1}" != "9" -o $bright -eq 1 ]; then
  29     echo -en " $FGs \033[$FG  $T  \033[0m"
  30     for BG in 40m 41m 42m 43m 44m 45m 46m 47m; do
  31       echo -en " \033[$FG\033[$BG  $T  \033[0m";
  32     done
  33     echo;
  34   fi
  35 done
  36 echo
  37
  38 # Bright background colors
  39 test $bright -eq 0 && exit 0
  40 echo -e "                 100m    101m    102m    103m    104m    105m    106m    107m";
  41 for FGs in  '    m' '   1m' \
  42             '  30m' '  90m' '1;30m' \
  43             '  31m' '  91m' '1;31m' \
  44             '  32m' '  92m' '1;32m' \
  45             '  33m' '  93m' '1;33m' \
  46             '  34m' '  94m' '1;34m' \
  47             '  35m' '  95m' '1;35m' \
  48             '  36m' '  96m' '1;36m' \
  49             '  37m' '  97m' '1;37m'; do
  50   FG=${FGs// /}
  51   echo -en " $FGs \033[$FG  $T  \033[0m"
  52   for BG in 100m 101m 102m 103m 104m 105m 106m 107m; do
  53     echo -en " \033[$FG\033[$BG  $T  \033[0m";
  54   done
  55   echo;
  56 done
  57 echo