SUM(1) SUM(1) sum -- sum []... []... 16- BSD. -, . -r BSD ( ), 1K -s, --sysv System V , 512 --help --version Kayvan Aghaiepour (David MacKenzie). - GNU coreutils: Copyright (C) 2025 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later . : . , . , info '(coreutils) sum invocation' () Kirill Rekhov ; GNU (GNU General Public License - GPL, 3 ) , - . - , , () () () <>. GNU coreutils 9.6 February 2025 SUM(1)