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)

   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 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.

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

REPORTING BUGS
       GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
       Report    sha224sum   translation   bugs   to   <http://translationpro-
       ject.org/team/>

COPYRIGHT
       Copyright (C) 2014 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
       Full     documentation      at:      <http://www.gnu.org/software/core-
       utils/sha224sum>
       or available locally via: info '(coreutils) sha2 utilities'



GNU coreutils 8.23                March 2015                      SHA224SUM(1)
