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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

use the BSD sum algorithm, use 1K blocks (default)
use System V sum algorithm, use 512 bytes blocks
Print help
Print version

VERSION

v(uutils coreutils) 0.8.0

EXAMPLES

Compute a checksum with BSD-compatible algorithm and 1024-byte blocks:

sum path/to/file

Compute a checksum with System V-compatible algorithm and 512-byte blocks:

sum [-s|--sysv] path/to/file

The examples are provided by the tldr-pages project <https://tldr.sh> under the CC BY 4.0 License. Please note that, as uutils is a work in progress, some examples might fail.

2026-05-17