sha512sum(feed) - phpMan

SHA512SUM(1)                     User Commands                    SHA512SUM(1)
NAME
       sha512sum - compute and check SHA512 message digest
SYNOPSIS
       sha512sum [OPTION]... [FILE]...
DESCRIPTION
       Print or check SHA512 (512-bit) checksums.
       With no FILE, or when FILE is -, read standard input.
       -b, --binary
              read in binary mode
       -c, --check
              read SHA512 sums from the FILEs and check them
       --tag  create a BSD-style checksum
       -t, --text
              read in text mode (default)
       -z, --zero
              end  each  output  line  with NUL, not newline, and disable file
              name escaping
   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.
       Note: There is no difference between binary mode and text mode  on  GNU
       systems.
AUTHOR
       Written by Ulrich Drepper, Scott Miller, and David Madore.
REPORTING BUGS
       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>;
       Report   sha512sum   translation   bugs   to   <https://translationpro-
       ject.org/team/>
COPYRIGHT
       Copyright (C) 2018 Free Software Foundation, Inc.  License GPLv3+:  GNU
       GPL version 3 or later <https://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
       Full     documentation     at:      <https://www.gnu.org/software/core-
       utils/sha512sum>
       or available locally via: info '(coreutils) sha2 utilities'
GNU coreutils 8.30                 July 2018                      SHA512SUM(1)