1 .\" DO NOT MODIFY THIS FILE! It was generated by help2man 1.43.3.
2 .TH MD5SUM "1" "May 2014" "GNU coreutils 8.22" "User Commands"
4 md5sum \- compute and check MD5 message digest
7 [\fIOPTION\fR]... [\fIFILE\fR]...
9 .\" Add any additional description here
11 Print or check MD5 (128\-bit) checksums.
12 With no FILE, or when FILE is \-, read standard input.
14 \fB\-b\fR, \fB\-\-binary\fR
17 \fB\-c\fR, \fB\-\-check\fR
18 read MD5 sums from the FILEs and check them
21 create a BSD\-style checksum
23 \fB\-t\fR, \fB\-\-text\fR
24 read in text mode (default)
25 .SS "The following four options are useful only when verifying checksums:"
28 don't print OK for each successfully verified file
31 don't output anything, status code shows success
34 exit non\-zero for improperly formatted checksum lines
36 \fB\-w\fR, \fB\-\-warn\fR
37 warn about improperly formatted checksum lines
40 display this help and exit
43 output version information and exit
45 The sums are computed as described in RFC 1321. When checking, the input
46 should be a former output of this program. The default mode is to print
47 a line with checksum, a character indicating input mode ('*' for binary,
48 space for text), and name for each FILE.
50 GNU coreutils online help: <http://www.gnu.org/software/coreutils/>
51 Report md5sum translation bugs to <http://translationproject.org/team/>
53 The MD5 algorithm should not be used any more for security related purposes.
54 Instead, better use an SHA\-2 algorithm, implemented in the programs
55 sha224sum(1), sha256sum(1), sha384sum(1), sha512sum(1)
57 Written by Ulrich Drepper, Scott Miller, and David Madore.
59 Copyright \(co 2013 Free Software Foundation, Inc.
60 License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
62 This is free software: you are free to change and redistribute it.
63 There is NO WARRANTY, to the extent permitted by law.
65 The full documentation for
67 is maintained as a Texinfo manual. If the
71 programs are properly installed at your site, the command
73 .B info coreutils \(aqmd5sum invocation\(aq
75 should give you access to the complete manual.