How To Count Instances of a Certain Word

[DanThomas]

@cfriend

Is there a source you'd recommend to learn some of basics of regular expressions?

Open(can(worms))

For testing expression syntax, I'd recommend regex101.com. As for learning, well.. see this thread:

How Did You Learn RegEx (Regular Expressions)?

I think it's worthwhile to dig in and learn how to use RegEx. When I need it I often search and find code online. I want to move past merely copying into 'creating'. Where's the best place to tackle this? I don't see any courses listed at the local college. There are thousands of online tutorials online. Anyone know of some good ones that helped them?