Welcome. This site isn't a code writing service, it's primarily for helping people with specific perl problems/questions, and helping people learn. In your previous thread you've already been provided with some code to get you started. You don't need to start a new thread if you have issues whith what you've already been given.

Regarding learning perl, https://learn.perl.org, tutorials, modern perl, Learn Perl in about 2 hours 30 minutes.

Update: fixed, link, struk out other pending review.