.\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.43.3. .TH SHA224SUM "1" "March 2015" "GNU coreutils 8.23" "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\-\-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 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 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 sha224sum 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) sha2 utilities\(aq