Many Thanks, this code is working and it is very simple. I am a beginner and I am approaching PERL on problem basis , I needed a script to find duplicates so I thought Perl can do that and tried create script for that, I have exposure to C and java in my college so I though Arrays can do the job so started script on that but Hashes are much more powerful and simple in code and it simply shows how powerful PERL is. Hopefully in future I will work more on PERL and will get to know much more about this simple and powerful language. Thanks again.