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