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sum - checksum and count the blocks in a file


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


Print checksum and block counts for each FILE.

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

output version information and exit

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


Written by Kayvan Aghaiepour and David MacKenzie.

Reporting Bugs

Report bugs to <>.


Copyright (C) 2006 Free Software Foundation, Inc. This is free software. You may redistribute copies of it under the terms of the GNU General Public License <>. There is NO WARRANTY, to the extent permitted by law.

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 command

info sum

should give you access to the complete manual.

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