coreutils

.TH SUM 1 2022-03-06 "OMKOV coreutils" "General Commands Manual"

.SH NAME

sum \(em write file checksums and block counts

.SH SYNOPSYS

\fBsum\fR [-rs] [\fIfile\fR...]

.SH DESCRIPTION

Compute and print a checksum for each input file, as well as the file block

count. When no option is specified, the BSD algorithm and block size is used.

.SH OPTIONS

The following options are supported:

.IP "\fB-r\fR" 8

Use BSD algorithm and 1024 byte blocks.

.IP "\fB-s\fR" 8

Use System V algorithm and 512 byte blocks.

.IP "\fB--help\fR" 8

Display help information.

.IP "\fB--version\fR" 8

Display version information.

.SH OPERANDS

The following operand is supported:

.IP "\fIfile\fR" 8

A pathname of an input file. If no \fIfile\fR operands are specified, or

\fIfile\fR is a '\fB-\fR', \fIsum\fR will read from standard input.

.SH EXIT STATUS

The following exit values will be returned:

.IP "\ 0" 8

All files were processed successfully.

.IP ">0" 8

An error occurred.

.SH COPYRIGHT

.nf

Copyright (C) 2020, Jakob Wakeling

MIT Licence (https://opensource.org/licenses/MIT)

.fi