MD5SUM - man page CentOS 7

NAME
SYNOPSIS
DESCRIPTION
BUGS
AUTHOR
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)

Note: There is no difference between binary and text mode option on GNU system.

The following four 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

−−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 character indicating input mode (’*’ for binary, space for text), and name for each FILE.

GNU coreutils online help: <http://www.gnu.org/software/coreutils/> Report md5sum translation bugs to <http://translationproject.org/team/>

BUGS

The MD5 algorithm should not be used any more for security related purposes. Instead, better use an SHA−2 algorithm, implemented in the programs sha224sum(1), sha256sum(1), sha384sum(1), sha512sum(1)

AUTHOR

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

COPYRIGHT

Copyright © 2013 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 'md5sum invocation'

should give you access to the complete manual.


 

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Created: Sunday October 8, 2017