.\" DO NOT MODIFY THIS FILE!  It was generated by help2man 1.35.
.TH SHA224SUM "1" "September 2011" "GNU coreutils 8.12.197-032bb" "User Commands"
.SH NAME
sha224sum \- compute and check SHA224 message digest
.SH SYNOPSIS
.B sha224sum
[\fIOPTION\fR]... [\fIFILE\fR]...
.SH DESCRIPTION
.\" Add any additional description here
.PP
Print or check SHA224 (224\-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 SHA224 sums from the FILEs and check them
.TP
\fB\-t\fR, \fB\-\-text\fR
read in text mode (default)
.SS "The following three 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\-w\fR, \fB\-\-warn\fR
warn about improperly formatted checksum lines
.TP
\fB\-\-strict\fR
with \fB\-\-check\fR, exit non\-zero for any invalid input
.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 RFC 3874.  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 type (`*' for binary, ` ' for
text), and name for each FILE.
.SH AUTHOR
Written by Ulrich Drepper, Scott Miller, and David Madore.
.SH "REPORTING BUGS"
Report sha224sum bugs to bug\-coreutils@gnu.org
.br
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
.br
General help using GNU software: <http://www.gnu.org/gethelp/>
.br
Report sha224sum translation bugs to <http://translationproject.org/team/>
.SH COPYRIGHT
Copyright \(co 2011 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 sha224sum
is maintained as a Texinfo manual.  If the
.B info
and
.B sha224sum
programs are properly installed at your site, the command
.IP
.B info coreutils \(aqsha224sum invocation\(aq
.PP
should give you access to the complete manual.