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       pbmlife - apply Conway's rules of Life to a portable bitmap
       pbmlife [pbmfile]
       Reads  a portable bitmap as input.  Applies the rules of Life to it for
       one generation, and produces a portable bitmap as output.
       A white pixel in the image is interpreted as  a  live  beastie,  and  a
       black pixel as an empty space.
       pbm(5)
       Copyright (C) 1988, 1991 by Jef Poskanzer.
                               21 February 1991                     pbmlife(1)