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:  
       Report md5sum translation bugs to 

BUGS
       The MD5 algorithm should not be used any more for security related pur‐
       poses.  Instead, better use an SHA-2 algorithm, implemented in the pro‐
       grams 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 .
       This is free software: you are free  to  change  and  redistribute  it.
       There is NO WARRANTY, to the extent permitted by law.

SEE ALSO
       The  full  documentation  for md5sum is maintained as a Texinfo manual.
       If the info and md5sum programs are properly installed  at  your  site,
       the command

              info coreutils 'md5sum invocation'

       should give you access to the complete manual.



GNU coreutils 8.22               October 2018                        MD5SUM(1)