09-25-2001
It is a checksum. This is a way to tel lis a file has become corrupted during copying etc...
if the file is identical, then it will have the same md5sum, but if as much as 1 byte of data is changed, then the md5sum is different...
Mainly used to verify copied data
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i downloaded a Linux distribution from a FTP site today, and i found there is a file named MD5SUM in the same directory, with the following contents:
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
c9a4d963a49e384e10dec9c2bd49ad73 valhalla-SRPMS-disc1.iso
41b03d068e84d2a17147aa27e704f79b ... (1 Reply)
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I am getting No such file or directory if my variable contains white spaces... Is there a way to fix this?
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This, does not
x="23\ 5\ 6\ 7\ 8\ 9\ 10.md5"
md5sum -c "$x"
md5sum: '23\ 5\ 6\ 7\ 8\ 9\ 10.md5': No such file or directory
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LEARN ABOUT DEBIAN
genhash
genhash(1) General Commands Manual genhash(1)
NAME
genhash - md5 hash generation tool for remote web pages
SYNOPSIS
genhash [options] [-s server-address] [-p port] [-u url]
DESCRIPTION
genhash is a tool used for generating md5sum hashes of remote web pages. genhash can use HTTP or HTTPS to connect to the web page. The
output by this utility includes the HTTP header, page data, and the md5sum of the data. This md5sum can then be used within the
keepalived(8) program, for monitoring HTTP and HTTPS services.
OPTIONS
--use-ssl, -S
Use SSL to connect to the server.
--server <host>, -s
Specify the ip address to connect to.
--port <port>, -p
Specify the port to connect to.
--url <url>, -u
Specify the path to the file you want to generate the hash of.
--use-virtualhost <host>, -u
Specify the virtual host to send along with the HTTP headers.
--verbose, -v
Be verbose with the output.
--help, -h
Display the program help screen and exit.
--release, -r
Display the release number (version) and exit.
SEE ALSO
keepalived(8), keepalived.conf(5)
AUTHOR
genhash was written by Alexandre Cassen <acassen@linux-vs.org>.
This man page was contributed by Andres Salomon <dilinger@voxel.net> for the Debian GNU/Linux system (but may be used by others).
Feb 2004 genhash(1)