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sha256sum(1)

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)

   The following five options are useful only when verifying checksums:
       --ignore-missing
              don't fail or report status for missing files

       --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 space, a character indicating input
       mode ('*' for binary, ' ' for text or where binary  is  insignificant),
       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    sha256sum   translation   bugs   to   <http://translationpro‐
       ject.org/team/>

COPYRIGHT
       Copyright © 2017 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.


ATTRIBUTES
       See attributes(7) for descriptions of the following attributes:


       box; cbp-1 | cbp-1 l | l .  ATTRIBUTE TYPE ATTRIBUTE VALUE = Availabil‐
       ity   file/gnu-coreutils = Stability Uncommitted

SEE ALSO
       Full      documentation      at:     <http://www.gnu.org/software/core‐
       utils/sha256sum>
       or available locally via: info '(coreutils) sha2 utilities'



NOTES
       This    software    was    built    from    source     available     at
       https://github.com/oracle/solaris-userland.    The  original  community
       source  was  downloaded  from   https://ftp.gnu.org/gnu/coreutils/core‐
       utils-8.27.tar.xz

       Further information about this software can be found on the open source
       community website at https://www.gnu.org/software/coreutils.



GNU coreutils 8.27                March 2017                      SHA256SUM(1)
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