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md5sum(1)

MD5SUM(1)                        User Commands                       MD5SUM(1)



NAME
       md5sum - compute and check MD5 message digest

SYNOPSIS
       md5sum [OPTION]... [FILE]...

DESCRIPTION
       Print or check MD5 (128-bit) checksums.

       With no FILE, or when FILE is -, read standard input.

       -b, --binary
              read in binary mode

       -c, --check
              read MD5 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 RFC  1321.   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.

BUGS
       Do not use the MD5 algorithm for security related  purposes.   Instead,
       use  an  SHA-2  algorithm,  implemented  in  the programs sha224sum(1),
       sha256sum(1), sha384sum(1),  sha512sum(1),  or  the  BLAKE2  algorithm,
       implemented in b2sum(1)

AUTHOR
       Written by Ulrich Drepper, Scott Miller, and David Madore.

REPORTING BUGS
       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
       Report    md5sum    translation    bugs   to   <https://translationpro‐
       ject.org/team/>

COPYRIGHT
       Copyright © 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.


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: <https://www.gnu.org/software/coreutils/md5sum>
       or available locally via: info '(coreutils) md5sum invocation'



NOTES
       Source  code  for open source software components in Oracle Solaris can
       be found at https://www.oracle.com/downloads/opensource/solaris-source-
       code-downloads.html.

       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-8.30.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 8.30                 July 2018                         MD5SUM(1)
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