"i copied manually 3 examples of that book and they all came with a bug in the lines of those diferent programs, i ask are all the examples in perl cookbook, are broken, not working, needing debugg??"

Unless you describe the problems you're experiencing there's little anyone can do to help. Work through Basic debugging checklist, PerlMonks for the Absolute Beginner and How do I post a question effectively?. Consider posting the code and the output from running the code. N.B. proper formatting makes it easier for people to help you.