md5sum <root
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)

   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 for‐
       mer 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 insignif‐
       icant), and name for each FILE.

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.

REPORTING BUGS
       GNU coreutils online help: 
       Report md5sum translation bugs to 

COPYRIGHT
       Copyright © 2016 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
       Full documentation at: 
       or available locally via: info '(coreutils) md5sum invocation'

GNU coreutils 8.25                        February 2016                                 MD5SUM(1)

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