Solution overview

- So I'm excited to share my solution…with you for this challenge…because there's some useful stuff in here…and in addition to showing you my solution…for this challenge,…I've also included some stuff which I find useful…in my own life, like if I am in this directory,…right here, and I want to go through…and I want to add something to the end…of every file, like this code right here,…this is all code that I use to teach at Fresno State…and at a variety of other places…and so this code is licensed for everybody.…

It's public domain…and I need to add the license to the end…of all of these files and that's a lot of files.…So before I knew programming,…the way I might have done that…would be, I'd come over here…and I'd get the license…and then I'd come over here…and I would paste that in.…That would be very laborious,…that would take forever to go…and do that to all those files.…So I'm going to show you how programmatically…we can go through all of these files…and add that text to the end of every file.…So that's a real time saver,…