   Program Name:    sum  
 
   Purpose: This is a Unix-compatible program to print a checksum
            for each specified file.
            
   Author:  Alan Ballard
            3452 West 11th Avenue,
            Vancouver, B.C., Canada, V6R 2J9
   
   Date:    8 June, 1990.  
  
   Use:     The program is run in OS/2 command mode. It may be run in
            a VIO window.  

   Usage:   sum <file>...

            Zero or more filenames may be specified. Names may include
            wildcards. If no name is specified, stdin is read. 

            For each specified file, the checksum and the number of
            "disk blocks" required is printed.  The checksum should
            be the same as produced by the BSD Unix sum command.  The
            number of disk blocks may differ from other systems,
            since disk block sizes may vary.     
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