im being asked to do something I dont know how to do

In situations like these I tell the one who asked me, that I'm currently feeling unable to solve the task but that I'm willing to try. I will also tell him that I will not be able yet to tell him how much time I need.

In regards to the script: Use the source young jedi! Comments are a powerful part of the source. And then there is always perl -d...

May the source be with you ;)