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Full Discussion: Hashing URLs
Top Forums Shell Programming and Scripting Hashing URLs Post 302872493 by twjolson on Friday 8th of November 2013 12:49:22 PM
Old 11-08-2013
Hashing URLs

So, I am writing a script that will read output from Bulk Extractor (which gathers data based on regular expressions). My script then reads the column that has the URL found, hashes it with MD5, then outputs the URL and hash to a file.

Where I am stuck on is that I want to read the bulk extractor output, line by line. I want to take the 2nd column, and add that as a variable named "url". I then want to take that URL, and hash it with MD5 and assign that to the variable "hash".

I then want to output $url and $hash to an output file, both on the same line.

But, when I use :
Code:
while read line
	do
		url=`awk '{print $2}'`
		hash=`awk '{print $2}' | md5sum`
		echo $url
	done < $iname/url.txt

to walk through the input file, line by line, it globs them all together. $url has EVERY URL, and $hash is a hash value of ALL the URLs.

I know this snippet of code works - I've used it before. So, what is going on?

Here is a snippet of the input :
Code:
1691	http://www.pof.com/inbox.aspx_	\007\0000\0001\0002\0003\000(\0004_\020\035http://www.pof.com/inbox.aspx_\0200Online Dating 
1874	http://www.pof.com/sendmessage.aspx	WasHTTPNonGet_\020#http://www.pof.com/sendmessage.aspx[401152043.2\020R\011_
1927	http://www.pof.com/inbox.aspx?messagesent=1&Guid=63929064&SID=dnia5geyks5fjvr2hfesqwbg#in	01152043.2\020R\011_\020Yhttp://www.pof.com/inbox.aspx?messagesent=1&Guid=63929064&SID=dnia5geyks5fjvr2hfesqwbg#in¡\000F\020\014\020\021¬\000H\000\025\000I\000\025
2101	http://www.pof.com/viewallmessages.aspx?sender_id=41561852&message_id=17458470377&Guid=63929064&SID=dnia5geyks5fjvr2hfesqwbg_	7\000C\000D\000E\000G\000J\000M_\020|http://www.pof.com/viewallmessages.aspx?sender_id=41561852&message_id=17458470377&Guid=63929064&SID=dnia5geyks5fjvr2hfesqwbg_\020.POF.com Free O

 

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Ns_Url(3aolserver)					   AOLserver Library Procedures 					Ns_Url(3aolserver)

__________________________________________________________________________________________________________________________________________________

NAME
Ns_AbsoluteUrl, Ns_ParseUrl, Ns_RelativeUrl, Ns_SkipUrl - URL manipulation routines SYNOPSIS
#include "ns.h" int Ns_AbsoluteUrl(Ns_DString *pds, char *url, char *baseurl) int Ns_ParseUrl(char *url, char **pprotocol, char **phost, char **pport, char **ppath, char **ptail) char * Ns_RelativeUrl(char *url, char *location) char * Ns_SkipUrl(Ns_Request *request, int n) _________________________________________________________________ DESCRIPTION
Ns_AbsoluteUrl(pds, url, baseurl) Construct an URL based on baseurl but with as many parts of the incomplete url as possible. Return NS_OK or NS_ERROR. Ns_ParseUrl(url, pprotocol, phost, pport, ppath, ptail) Parse a URL into its component parts. Pointers to the protocol, host, port, path, and "tail" (last path element) will be set by ref- erence in the passed-in pointers. The passed-in url will be modified. Ns_RelativeUrl(url, location) If the url passed in is for this server, then the initial part of the URL is stripped off. e.g., on a server whose location is http://www.foo.com, Ns_RelativeUrl of "http://www.foo.com/hello" will return "/hello". Returns a pointer to the beginning of the relative url in the passed-in url, or NULL if error. Will set errno on error. Ns_SkipUrl(request, n) Return a pointer n elements into the request's url. SEE ALSO
nsd(1), info(n) KEYWORDS
AOLserver 4.0 Ns_Url(3aolserver)
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