Should I program everything in Perl?

    Of course not.  You should choose the appropriate tool for the task at
    hand.  While it's true that the answer to the question "Can I do (some
    arbitrary task) in Perl?" is almost always "yes", that doesn't mean
    this is necessarily a good thing to do.  For many people, Perl serves
    as a great replacement for shell programming.  For a few people, it
    also serves as a replacement for most of what they'd do in C.  But
    for some things, Perl just isn't the optimal choice, such as tasks
    requiring very complex data structures.