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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 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

     --strict
          with --check, exit non-zero for any invalid input

     --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 pro-
     gram.  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
     Report sha256sum bugs to bug-coreutils@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 2012 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  redistri-
     bute  it.   There is NO WARRANTY, to the extent permitted by
     law.

Attributes
     See attributes(5) for descriptions of the  following  attri-
     butes:

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

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.

Notes
     This  software  was   built   from   source   available   at
     https://java.net/projects/solaris-userland.    The  original
     community       source       was       downloaded       from
     http://ftp.gnu.org/gnu/coreutils/coreutils-8.16.tar.xz

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