# 2.11BSD#431 - /usr/man/cat1/sum.0

    SUM(1)		    UNIX Programmer's Manual		   SUM(1)

    NAME
         sum - sum and count blocks in a file

    SYNOPSIS
         sum file

    DESCRIPTION
         Sum calculates and prints a 16-bit checksum for the named
         file, and also prints the number of blocks in the file.  It
         is typically used to look for bad spots, or to validate a
         file communicated over some transmission line.

    SEE ALSO
         wc(1)

    DIAGNOSTICS
         `Read error' is indistinguishable from end of file on most
         devices; check the block count.

    Printed 11/26/99	 April 29, 1985                         1

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