sum(1) General Commands Manual sum(1) NAME sum - Checksum and count the blocks in a file. With no FILE, or when FILE is -, read standard input. SYNOPSIS sum [-r ] [-s|--sysv] [-h|--help] [-V|--version] [file] DESCRIPTION Checksum and count the blocks in a file. With no FILE, or when FILE is -, read standard input. OPTIONS -r use the BSD sum algorithm, use 1K blocks (default) -s, --sysv use System V sum algorithm, use 512 bytes blocks -h, --help Print help -V, --version Print version VERSION v0.0.29 sum 0.0.29 sum(1)