Under what circumstances would you want to use a perl script under another perl script when you are 'only learning’?

If it’s only for the purposes of re-using code then you need to look at why you wouldn’t either a) paste the code into the new project b) maybe read a book on OO so you have an idea of the principals of code reusability and write yourself a module or ‘include’ the code.

What happens if you change/delete the script you are calling down the track. It could break all sorts of other scripts you have that use the first script.

Though you can call a script from a script, I think your should just be asking yourself why and should I before you go ahead and do it. You may have a good reason for wanting to do this, but good coding practices would be easier to acquire as you learn not after. That’s my .02 anyway.

edit: Oh and ++ to all those above/below that are going to give a real answer.