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SHA224SUM(1)				  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

       --tag  create a BSD-style checksum

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

	      Note: There is no difference between binary and text mode option on GNU system.

   The following four 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

       --strict
	      exit non-zero for improperly formatted checksum lines

       -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 checking, the input should be a for-
       mer  output of this program.  The default mode is to print a line with checksum, a charac-
       ter indicating input mode ('*' for binary, space for text), and name for each FILE.

       GNU  coreutils  online  help:  <http://www.gnu.org/software/coreutils/>	Report	sha224sum
       translation bugs to <http://translationproject.org/team/>

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

COPYRIGHT
       Copyright  (C)  2013  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 redistribute it.  There is NO	WARRANTY,
       to the extent permitted by law.

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

	      info coreutils 'sha224sum invocation'

       should give you access to the complete manual.

GNU coreutils 8.22			    June 2014				     SHA224SUM(1)
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