Raspberry pi3 Coding

Hey guys, I've been wanting to learn Linux and code for a long time now. I have a MacBook Pro and a Windows desktop. I've never heard of raspberry pi until yesterday. It looks like a great, inexpensive and really cool way to start learning code. My question is. Does the raspberry pie come with any sort of curriculum? Are there raspberry pi courses online? If I get one and it has Linux on it I am going to be in way above my head. How do I get started using the raspberry pi 3?

Any help or info would be greatly appreciated.

Thanks.