Further to the general comments of GrandFather and choroba, here are some links to advice that may help you to help yourself and help you to help us to help you.

Helping you to help yourself:

• perlintro
• Basic debugging checklist
• Monastery Tutorials
• (Update: learn.perl.org)

Helping us to help you:

• "It doesn't work" is rarely a good problem description. (Update: What did not work? (Ok, you've supplied some code.) Exactly what was the input? Exactly what output do you expect? Exactly what warning or error messages were produced?)
• How do I post a question effectively?
• I know what I mean. Why don't you?
• Short, Self-Contained, Correct Example (Note that composing an SSCCE can often clarify a question in your own mind to the extent that you no longer need to ask anyone else.)