Anyway, I didn't want to be too harsh.
Just had to laugh about my imagination.

But I'm sure you can and should try your task on your own.
To be honest it's quite basic.
And I'd like to propose Perl was originally intended for this sort of tasks,
working with text files (config and log files).
So your homework is quite senseful.

I'm also sure if you try and run into any troubles, you will get any help you need here on this forum.

Hopefully you'll be successfull. To see a script doing what you want can also be fun and a nice affirmation.

Good Luck..


...addition:
I'd like to give you the hint that your prof will most likey test the script with other files.
If your script gives you the desired output you posted,
this doesn't mean it works in all cases.