MD5SUM
NAMESYNOPSIS
DESCRIPTION
BUGS
AUTHOR
REPORTING BUGS
COPYRIGHT
SEE ALSO
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
--tag |
create a BSD-style checksum |
-t, --text
read in text mode (default)
-z, --zero
end each output line with NUL, not newline, and disable file name escaping
The
following five options are useful only when verifying
checksums:
--ignore-missing
don’t fail or report status for missing files
--quiet
don’t print OK for each successfully verified file
--status
don’t output anything, status code shows success
--strict
exit non-zero for improperly formatted checksum lines
-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 space, a character indicating input mode (’*’ for binary, ’ ’ for text or where binary is insignificant), and name for each FILE.
BUGS
Do not use the MD5 algorithm for security related purposes. Instead, use an SHA-2 algorithm, implemented in the programs sha224sum(1), sha256sum(1), sha384sum(1), sha512sum(1), or the BLAKE2 algorithm, implemented in b2sum(1)
AUTHOR
Written by Ulrich Drepper, Scott Miller, and David Madore.
REPORTING BUGS
GNU coreutils
online help: <https://www.gnu.org/software/coreutils/>
Report md5sum translation bugs to
<https://translationproject.org/team/>
COPYRIGHT
Copyright
© 2018 Free Software Foundation, Inc. License GPLv3+:
GNU GPL version 3 or later
<https://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
Full
documentation at:
<https://www.gnu.org/software/coreutils/md5sum>
or available locally via: info '(coreutils) md5sum
invocation'
Manpage server at man.gnu.org.ua.
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