NAME
    sum - checksum and count the blocks in a file

SYNOPSIS
    sum [OPTION]... [FILE]...

DESCRIPTION
    Print checksum and block counts for each FILE.

    -r   defeat -s, use BSD sum algorithm, use 1K blocks

    -s, --sysv
    use System V sum algorithm, use 512 bytes blocks

    --help display this help and exit

    --version
    output version information and exit

    With no FILE, or when FILE is -, read standard input.

AUTHOR
    Written by Kayvan Aghaiepour and David MacKenzie.

REPORTING BUGS
    Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT
    Copyright (C) 2002 Free Software Foundation, Inc.
    This is free software; see the source for copying conditions. There is
    NO warranty; not even for MERCHANTABILITY or FITNESS FOR  A PARTICULAR
    PURPOSE.

SEE ALSO
    The full documentation for sum is maintained as a Texinfo manual. If
    the info and sum programs are properly installed at your site, the com-
    mand

    info sum

    should give you access to the complete manual.