• 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-coreutils@gnu.org
  GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
  General help using GNU software: <http://www.gnu.org/gethelp/>
• COPYRIGHT
  
  Copyright © 2009 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 (aqmd5sum invocation(aq
  
  should give you access to the complete manual.

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