On Sat, Apr 19, 2008 at 2:21 PM, Manoj <manojkumarg@[EMAIL PROTECTED] > wrote: > Thanks Jeff... :) > Is this all mentioned in any Perl books? snip You can find information about HoH (hash of hashes) and other advanced data structures in The Camel*, The Llama**, and the docs that come with Perl***. * http://www.oreilly.com/catalog/pperl3/index.html ** http://www.oreilly.com/catalog/9780596520106/index.html *** http://perldoc.perl.org/perldsc.html -- Chas. Owens wonkden.net The most im****tant skill a programmer can have is the ability to read.