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

       -t, --text
              read in text mode (default)

              Note: There is no difference between binary and text mode option on GNU system.

   The following three 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

       -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 type (`*' for binary, ` ' for text), and  name  for
       each FILE.

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

REPORTING BUGS
       Report md5sum bugs to bug-coreutilsATgnu.org
       GNU coreutils home page: <http://www.gnu.org/software/coreutils/>;
       General help using GNU software: <http://www.gnu.org/gethelp/>;
       Report md5sum translation bugs to <http://translationproject.org/team/>;

COPYRIGHT
       Copyright   (C)   2010   Free   Software   Foundation,   Inc.    License   GPLv3+:   GNU   GPL   version   3   or   later
       <http://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
       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 8.5                                         November 2010                                                MD5SUM(1)