SUM(1) General Commands Manual SUM(1) (NAME) sum - FILE FILE - . (SYNOPSIS) sum [OPTION]... [FILE]... (DESCRIPTION) . FILE FILE - . (OPTIONS) -r BSD sum () -s, --sysv System V sum -h, --help -V, --version (VERSION) v(uutils coreutils) 0.11.0 2026-09-01 SUM(1)