.TH CKSUM 1 2022-03-06 "OMKOV coreutils" "General Commands Manual" .SH NAME cksum \(em write file checksums and sizes .SH SYNOPSYS \fBcksum\fR [\fIfile\fR...] .SH DESCRIPTION Compute and print a CRC for each input file, as well as the file size in bytes. The CRC used is based on the polynomial used for CRC error checking in the ISO/IEC 8802-3:1996 Ethernet standard. .SH OPTIONS The following options are supported: .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', \fIcksum\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