.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.43.3.
.TH SHA1SUM "1" "November 2014" "GNU coreutils 8.23" "User Commands"
.SH NAME
sha1sum \- compute and check SHA1 message digest
.SH SYNOPSIS
.B sha1sum
[\fIOPTION\fR]... [\fIFILE\fR]...
.SH DESCRIPTION
.\" Add any additional description here
.PP
Print or check SHA1 (160\-bit) checksums.
With no FILE, or when FILE is \-, read standard input.
.TP
\fB\-b\fR, \fB\-\-binary\fR
read in binary mode
.TP
\fB\-c\fR, \fB\-\-check\fR
read SHA1 sums from the FILEs and check them
.TP
\fB\-\-tag\fR
create a BSD\-style checksum
.TP
\fB\-t\fR, \fB\-\-text\fR
read in text mode (default)
.SS "The following four options are useful only when verifying checksums:"
.TP
\fB\-\-quiet\fR
don't print OK for each successfully verified file
.TP
\fB\-\-status\fR
don't output anything, status code shows success
.TP
\fB\-\-strict\fR
exit non\-zero for improperly formatted checksum lines
.TP
\fB\-w\fR, \fB\-\-warn\fR
warn about improperly formatted checksum lines
.TP
\fB\-\-help\fR
display this help and exit
.TP
\fB\-\-version\fR
output version information and exit
.PP
The sums are computed as described in FIPS\-180\-1.  When checking, the input
should be a former output of this program.  The default mode is to print
a line with checksum, a character indicating input mode ('*' for binary,
space for text), and name for each FILE.
.PP
GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
Report sha1sum translation bugs to <http://translationproject.org/team/>
.SH AUTHOR
Written by Ulrich Drepper, Scott Miller, and David Madore.
.SH COPYRIGHT
Copyright \(co 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
.br
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
.SH "SEE ALSO"
The full documentation for
.B sha1sum
is maintained as a Texinfo manual.  If the
.B info
and
.B sha1sum
programs are properly installed at your site, the command
.IP
.B info coreutils \(aqsha1sum invocation\(aq
.PP
should give you access to the complete manual.