I am trying to compare two identical files by using md5 command, but cant get the right command parameters Please help me with any examples. All I want is to know how to compare two identical files which are residing on two different machines in my local network, for example:
Host_A -... (6 Replies)
I am a newbie in programming in Perl.
My problem is that this unix command is embedded in Perl but it gives an empty output. Here's the code:
$temp = `md5 "../Directory String/..." | awk {'print $NF'} > "../Directory/file.txt"`;
The output file should contain the md5 hash value of the... (2 Replies)
Hi.
I'm triyng to make a Bash Script that checks (recursively) the MD5 from all the files in a certain directory and compare them against some other check that should be already done and saved in a file.
I've reached to the point where i have the MD5 from the file and the MD5 that the script... (1 Reply)
Hi all, I am brand new to these forums and I am a brand new UNIX Administartor. Don't know any scripting yet :wall:, and would like to learn as my boss is slowly letting me understand everything about being a Sys/*Nix Admin. He created this script which I am trying to replicate because I lost it... (54 Replies)
Hello everyone,
I am looking to basically creating md5sum files for all iso files in a directory and archive the resulting md5 files into a single archive in that very same directory.
I worked out a clumsy solution such as:
#find files for which md5sum are to be created and store the... (1 Reply)
Hi, I tried to write script, which would be able to generate MD5 sums into txt file.. But It won't work.. (I've been trying to fix that over 4 hours, but nothing helps)
Here it is
#!/bin/bash
FILE="nothing1"
POST="nothing2"
I=1
while
do
FILE=`ls -ltR | grep "^-" | tr -s "... (1 Reply)
Hello good people,
I came across md5 checksum. Can anyone please explain to me what it does and if possible an example of how to use it?
Thank you very much (1 Reply)
I have more than one file in my directory & I want to SCP them all with MD5 verification of local & remote file, Problem is that the script gets stop after scp one file. Below is the code. #!/usr/bin/bash
cd /application/datafolder/my/
ls > my_file_list.txt
while read fname
do
... (7 Replies)
I have about 1500 rows (encoded b64(b64(md5($pass))) algorythm) in a file.
I would like reverse the b64 into md5 hash format.
How could I do that from command line? So I need only the correct md5 hash formats.
These row format:
4G5qc2WQzGES6QkWAUgl5w
P9tKxonBOg3ymr8vOBLnDA... (1 Reply)
Discussion started by: freeroute
1 Replies
LEARN ABOUT OSX
md5
MD5(1) BSD General Commands Manual MD5(1)NAME
md5 -- calculate a message-digest fingerprint (checksum) for a file
SYNOPSIS
md5 [-pqrtx] [-s string] [file ...]
DESCRIPTION
The md5 utility takes as input a message of arbitrary length and produces as output a ``fingerprint'' or ``message digest'' of the input. It
is conjectured that it is computationally infeasible to produce two messages having the same message digest, or to produce any message having
a given prespecified target message digest. The MD5 algorithm is intended for digital signature applications, where a large file must be
``compressed'' in a secure manner before being encrypted with a private (secret) key under a public-key cryptosystem such as RSA.
MD5's designer Ron Rivest has stated "md5 and sha1 are both clearly broken (in terms of collision-resistance)". So MD5 should be avoided
when creating new protocols, or implementing protocols with better options. SHA256 and SHA512 are better options as they have been more
resilient to attacks (as of 2009).
The following options may be used in any combination and must precede any files named on the command line. The hexadecimal checksum of each
file listed on the command line is printed after the options are processed.
-s string
Print a checksum of the given string.
-p Echo stdin to stdout and append the checksum to stdout.
-q Quiet mode - only the checksum is printed out. Overrides the -r option.
-r Reverses the format of the output. This helps with visual diffs. Does nothing when combined with the -ptx options.
-t Run a built-in time trial.
-x Run a built-in test script.
EXIT STATUS
The md5 utility exits 0 on success, and 1 if at least one of the input files could not be read.
SEE ALSO cksum(1), md5(3), ripemd(3), sha(3), CC_SHA256_Init(3)
Vlastimil Klima, Finding MD5 Collisions - a Toy For a Notebook, Cryptology ePrint Archive: Report 2005/075.
ACKNOWLEDGMENTS
This program is placed in the public domain for free general use by RSA Data Security.
BSD June 6, 2004 BSD
03-27-2011
