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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)

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

       GNU  coreutils  online  help:  <http://www.gnu.org/software/coreutils/>  Report  md5sum  translation  bugs  to
       <http://translationproject.org/team/>

BUGS
       The MD5 algorithm should not be used any more for security related purposes.  Instead,  better  use  an  SHA-2
       algorithm, implemented in the programs sha224sum(1), sha256sum(1), sha384sum(1), sha512sum(1)

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

COPYRIGHT
       Copyright   ©   2013   Free   Software   Foundation,  Inc.   License  GPLv3+:  GNU  GPL  version  3  or  later


GNU coreutils 8.22                                  November 2016                                           MD5SUM(1)