sha256sum - phpMan

SHA256SUM(1)                     User Commands                    SHA256SUM(1)



NAME
       sha256sum - compute and check SHA256 message digest

SYNOPSIS
       sha256sum [OPTION] [FILE]...

DESCRIPTION
       Print  or  check SHA256 (256-bit) checksums.  With no FILE, or when FILE is -, read
       standard input.

       -b, --binary
              read in binary mode

       -c, --check
              read SHA256 sums from the FILEs and check them

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

   The following two options are useful only when verifying checksums:
       --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 FIPS-180-2.  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.

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

REPORTING BUGS
       Report bugs to <bug-coreutils AT gnu.org>.

COPYRIGHT
       Copyright (C) 2006 Free Software Foundation, Inc.
       This  is  free  software.  You may redistribute copies of it under the terms of the
       GNU General Public License  <http://www.gnu.org/licenses/gpl.html>.   There  is  NO
       WARRANTY, to the extent permitted by law.

SEE ALSO
       The  full  documentation  for  sha256sum is maintained as a Texinfo manual.  If the
       info and sha256sum programs are properly installed at your site, the command

              info sha256sum

       should give you access to the complete manual.



sha256sum 5.97                    March 2007                      SHA256SUM(1)

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