SHA256SUM(1) - 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

       --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 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 char-
       acter indicating input mode ('*' for binary, space for text), and name for each FILE.

       GNU  coreutils  online  help:  <http://www.gnu.org/software/coreutils/>  Report  sha256sum
       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 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 8.22                        November 2016                              SHA256SUM(1)


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