Here is the collection of most frequently asked Perl interview questions. Perl Basics What is CPAN? Its uses? What does “use strict” , “use vars” , “no vars” mean? Difference b/w use and require? What do the symbols $ @ and % mean when prefixing a variable? What purpose does each of the following serve: -w, strict, -T ? Explain the use of do, require, use, import Use of our, my and local? Use of ref function What are STDIN,STDOUT and STDERR?. @INC and %INC How you can invoke shell command? Hint: system(), backtick, exec() in details What is the