sum

(1)

checksum and count the blocks in a file

User commands 4 optionscoreutils 9.7-3

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

Options

4

-r

use BSD sum algorithm (the default), 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

DESCRIPTION

Print or check BSD (16-bit) checksums.

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

-r: use BSD sum algorithm (the default), 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

AUTHOR

Written by Kayvan Aghaiepour and David MacKenzie.

REPORTING BUGS

GNU coreutils online help: https://www.gnu.org/software/coreutils/
Report any translation bugs to https://translationproject.org/team/

SEE ALSO

Full documentation https://www.gnu.org/software/coreutils/sum
or available locally via: info '(coreutils) sum invocation'

Packaged by Debian (9.7-3)
Copyright © 2025 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later https://gnu.org/licenses/gpl.html.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.