1MD5SUM(1)                        User Commands                       MD5SUM(1)
2
3
4

NAME

6       md5sum - compute and check MD5 message digest
7

SYNOPSIS

9       md5sum [OPTION]... [FILE]...
10

DESCRIPTION

12       Print or check MD5 (128-bit) checksums.
13
14       With no FILE, or when FILE is -, read standard input.
15
16       -b, --binary
17              read in binary mode
18
19       -c, --check
20              read MD5 sums from the FILEs and check them
21
22       --tag  create a BSD-style checksum
23
24       -t, --text
25              read in text mode (default)
26
27       -z, --zero
28              end  each  output  line  with NUL, not newline, and disable file
29              name escaping
30
31   The following five options are useful only when verifying checksums:
32       --ignore-missing
33              don't fail or report status for missing files
34
35       --quiet
36              don't print OK for each successfully verified file
37
38       --status
39              don't output anything, status code shows success
40
41       --strict
42              exit non-zero for improperly formatted checksum lines
43
44       -w, --warn
45              warn about improperly formatted checksum lines
46
47       --help display this help and exit
48
49       --version
50              output version information and exit
51
52       The sums are computed as described in RFC  1321.   When  checking,  the
53       input  should  be a former output of this program.  The default mode is
54       to print a line with checksum, a space, a  character  indicating  input
55       mode  ('*'  for binary, ' ' for text or where binary is insignificant),
56       and name for each FILE.
57
58       Note: There is no difference between binary mode and text mode  on  GNU
59       systems.
60

BUGS

62       Do  not  use the MD5 algorithm for security related purposes.  Instead,
63       use an SHA-2  algorithm,  implemented  in  the  programs  sha224sum(1),
64       sha256sum(1),  sha384sum(1),  sha512sum(1),  or  the  BLAKE2 algorithm,
65       implemented in b2sum(1)
66

AUTHOR

68       Written by Ulrich Drepper, Scott Miller, and David Madore.
69

REPORTING BUGS

71       GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
72       Report any translation bugs to <https://translationproject.org/team/>
73

75       Copyright © 2020 Free Software Foundation, Inc.   License  GPLv3+:  GNU
76       GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
77       This  is  free  software:  you  are free to change and redistribute it.
78       There is NO WARRANTY, to the extent permitted by law.
79

SEE ALSO

81       Full documentation <https://www.gnu.org/software/coreutils/md5sum>
82       or available locally via: info '(coreutils) md5sum invocation'
83
84
85
86GNU coreutils 8.32               February 2021                       MD5SUM(1)
Impressum