ship version 1.0  September 29, 1991  Mark Adler
Atari version March 15, 1992 by Michael Mies '-m not supported'
Usage:
   ship [-f] [-q] [-nnn] [-m address] [-s subject] files...

   ships the files to stdout.  -m sends the output via the mailer to
   address.  -nnn splits the output into pieces of nnnK bytes or less.
   if -nnn is used without -m, the output goes to the files partxxxx,
   where xxxx is 0001, 0002, etc.  If -0 is specified, the output goes
   entirely to the file part0001.  -f uses a fast method with slightly
   less performance.  If no files are given, stdin is used.  The special
   filename '-' also takes input from stdin.  Files shipped from stdin
   are unshipped to stdout.  This can be used to document a shipment.
   When mailing, -s gives a subject line prefix.  -q inhibits messages.

   ship -u [-o] [-q] files...
   unship  [-o] [-q] files...

   extracts the contents of the mail messages in files...  -o allows
   existing files to be overwritten.  -u is implied if the name of the
   executable is unship.  If no files are given, the input is from
   stdin.  If any of the files were shipped from stdin, then they are
   extracted to stdout.