.ie \n(.g .ds Aq \(aq .el .ds Aq ' .TH SUM 1 "2026-09-01" .SH NAME sum \- Checksum and count the blocks in a file. With no FILE, or when FILE is \-, read standard input. .SH SYNOPSIS \fBsum\fR [OPTION]... [FILE]... .SH DESCRIPTION Checksum and count the blocks in a file. .PP With no FILE, or when FILE is \-, read standard input. .SH OPTIONS .TP \fB\-r\fR use the BSD sum algorithm, use 1K blocks (default) .TP \fB\-s\fR, \fB\-\-sysv\fR use System V sum algorithm, use 512 bytes blocks .TP \fB\-h\fR, \fB\-\-help\fR Print help .TP \fB\-V\fR, \fB\-\-version\fR Print version .SH VERSION v(uutils coreutils) 0.11.0