Not sure which "capture/playback" feature of Perl you're referring to. (And as far as I know, PerlMonks itself doesn't have such a feature...) Perl doesn't have a capture/playback function built-in.

Perl doesn't deal with keystrokes in an event-driven fashion, normally; instead it deals with streams, UNIXwise. It's possible to get Perl to note the times of keyboard events, and use it to capture keystrokes, but getting such a program to intercept user events before they're passed to your application is up to the operating system and has nothing to do with Perl.

If you're simply talking about parsing a file that records these events, and outputting them to the screen, again, sure, it's possible, but without any knowledge of what the capture/playback feature is, it's not possible to answer your question.

In terms of general starting points for Perl, best place to start is by reading the fine manual.

stephen