Renaming Your Photos
Let’s do something really useful now. A day ago I got an email from someone wanting to know how to rename a bunch of files. A year ago my wife wanted a program to download the pictures from her camera’s memory card and rename them. I’ll show you a modified version of her program.
But first, we ought to talk about a few new methods we’ll be using in this program. The first is the Dir method. We’ve seen  used with arrays before…you did know that was a method, didn’t you? Oh, yeah, it sure is. You say “arr” and I say “arr. 2”—it’s all the same.
Anyway, rather than using an array’s  method, we’re using the object Dir’s  method. (The Dir is for directory.) And instead of passing in a number, like with arrays, ...