.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.43.3.
.TH SHA1SUM "1" "March 2015" "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.
.SH AUTHOR
Written by Ulrich Drepper, Scott Miller, and David Madore.
.SH "REPORTING BUGS"
GNU coreutils online help:
.br
Report sha1sum translation bugs to
.SH COPYRIGHT
Copyright \(co 2014 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later .
.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"
Full documentation at:
.br
or available locally via: info \(aq(coreutils) sha1sum invocation\(aq