in reply to perl keylogger on linux
Seeing as how you're the one taking the Systems Programming Course it seems to me that you should be the one doing your homework. We're awfully helpful to people around here, but you'll find an enormous reluctance to do your work for you, especially when (it appears) you've done exactly zero of the work so far.
Try to solve the problem yourself. If you have a (very specific) question about something, please feel free to post it.