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

       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)

   The following three options are useful only when verifying checksums:
              don't print OK for each successfully verified file

              don't output anything, status code shows success

       -w, --warn
              warn about improperly formatted checksum lines

              with --check, exit non-zero for any invalid input

       --help display this help and exit

              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.

       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)

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

       Report md5sum bugs to
       GNU coreutils home page: <>
       General help using GNU software: <>
       Report md5sum translation bugs to <>

       should give you access to the complete manual.

GNU coreutils 8.12.197-032bb    September 2011                       MD5SUM(1)
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