The Geek Pub » Linux http://www.thegeekpub.com Drink Beer and Geek Out Mon, 29 Nov 2010 01:49:40 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 How to Parse the Verisign Zone Files under Linux http://www.thegeekpub.com/527/how-to-parse-the-verisign-zone-files-under-linux/ http://www.thegeekpub.com/527/how-to-parse-the-verisign-zone-files-under-linux/#comments Thu, 10 Jun 2010 03:30:15 +0000 The Big Geek http://www.thegeekpub.com/?p=527 Many developers have access to the Verisign TLD Zone files. A common question is what is the easiest way to extract the domain names for processing by another program.  Sometimes you simply need to extract the domain names for insert into a database such as MSSQL or MySQL.

The good news is that it’s not that hard at all. All you need to do is grep the file like so:

For .NET domains:

grep “^[a-zA-Z0-9-]\+ NS .*” net.zone|sed “s/NS .*//”|uniq >> netdomains.txt

For .COM domains:

grep “^[a-zA-Z0-9-]\+ NS .*” com.zone|sed “s/NS .*//”|uniq >> comdomains.txt

For .EDU domains:

grep “^[a-zA-Z0-9-]\+ NS .*” edu.zone|sed “s/NS .*//”|uniq >> edudomains.txt

Grepping these files will create a file that just contains the list of domains.  Each domain will appear on a new line.  The output file will be missing the .com/.net/.edu extensions and you will need to add the correct extension (depending on the file) during your import process, or in you code after the import.

This process is the same on Mac OSX, BSD and other UNIX or Linux variants.

It’s really that simple!

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