User Commands					     SHA224SUM(1)



NAME
     sha224sum - compute and check SHA224 message digest

SYNOPSIS
     sha224sum [OPTION]... [FILE]...

DESCRIPTION
     Print or check SHA224 (224-bit) checksums.	 With no FILE, or
     when FILE is -, read standard input.

     -b, --binary
	  read in binary mode

     -c, --check
	  read SHA224 sums from	the FILEs and check them

     -t, --text
	  read in text mode (default)

  The following	three options  are  useful  only  when	verifying
     checksums:
     --quiet
	  don't	print OK for each successfully verified	file

     --status
	  don't	output anything, status	code shows success

     -w, --warn
	  warn about improperly	formatted checksum lines

     --help
	  display this help and	exit

     --version
	  output version information and exit

     The sums are computed as described	in RFC 3874.  When check-
     ing,  the	input  should be a former output of this program.
     The default mode is to print a line with checksum,	a charac-
     ter indicating type (`*' for binary, ` ' for text), and name
     for each FILE.

AUTHOR
     Written by	Ulrich Drepper,	Scott Miller, and David	Madore.

REPORTING BUGS
     Report sha224sum bugs to bug-coreutils@gnu.org
     GNU	     coreutils		   home		    page:
     <http://www.gnu.org/software/coreutils/>
     General	    help	using	     GNU	software:
     <http://www.gnu.org/gethelp/>




GNU coreutils 7.4     Last change: May 2009			1






User Commands					     SHA224SUM(1)



COPYRIGHT
     Copyright c 2009 Free  Software  Foundation,  Inc.	  License
     GPLv3+:	  GNU	   GPL	   version     3     or	    later
     <http://gnu.org/licenses/gpl.html>.
     This is free software: you	are free to change and	redistri-
     bute  it.	 There is NO WARRANTY, to the extent permitted by
     law.

SEE ALSO
     The full documentation for	sha224sum is maintained	as a Tex-
     info  manual.   If	the info and sha224sum programs	are prop-
     erly installed at your site, the command

	  info coreutils sha224sum invocation

     should give you access to the complete manual.







































GNU coreutils 7.4     Last change: May 2009			2