ppmtomap(1) on Linux
The text 3566ec571381, as Debian 3.0 (Woody), Debian 2.2 (Potato) shipped it.
extract all colors from a portable pixmap
Flags it lists
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-sort -
-square
The text 3566ec571381, as Debian 3.0 (Woody), Debian 2.2 (Potato) shipped it.
extract all colors from a portable pixmap
-sort
-square