sha256sum - phpMan

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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)

              Note: There is no difference between binary and text mode option on GNU sys-
              tem.

   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 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 sha256sum bugs to bug-coreutils AT gnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
       General help using GNU software: <http://www.gnu.org/gethelp/>
       Report sha256sum translation bugs to <http://translationproject.org/team/>

COPYRIGHT
       Copyright (C) 2010 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 sha256sum is maintained as a  Texinfo  manual.   If  the
       info and sha256sum programs are properly installed at your site, the command

              info coreutils 'sha256sum invocation'

       should give you access to the complete manual.



GNU coreutils 8.4                 March 2017                      SHA256SUM(1)

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