sum (1)

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

Print checksum and block counts for each FILE.

-r

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.

Written by Kayvan Aghaiepour and David MacKenzie.

GNU coreutils online help: <http://www.gnu.org/software/coreutils/>

Report sum translation bugs to <http://translationproject.org/team/>

Copyright © 2014 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://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.

Full documentation at: <http://www.gnu.org/software/coreutils/sum>

or available locally via: info '(coreutils) sum invocation'