sum(1BSD)            (BSD System Compatibility)            sum(1BSD)


       NAME
             sum - (BSD) calculate a checksum for a file

       SYNOPSIS
             /usr/ucb/sum file

       DESCRIPTION
             sum calculates and displays a 16-bit checksum for the named
             file, and also displays the size of the file in kilobytes.  It
             is typically used to look for bad spots, or to validate a file
             communicated over some transmission line.  The checksum is
             calculated by an algorithm which may yield different results
             on machines with 16-bit ints and machines with 32-bit ints, so
             it cannot always be used to validate that a file has been
             transferred between machines with different-sized ints.

       REFERENCES
             sum(1), wc(1)

       DIAGNOSTICS
             Read error is indistinguishable from EOF on most devices;
             check the block count.

       NOTICES
             Obsolescent.























                           Copyright 1994 Novell, Inc.               Page 1