Learning C takes a bit more than learning than its syntax. Feeding someone this and telling them they now know C is a recipe for disaster. The "Best to find yourself a copy of K&R" line is the only line that should be there.
I'd go with Zed's Learn C The Hard Way, then 21st Century C and go from there.
Also, bstr stops a lot of simple tasks looking impossible and therefore motivates people.
Further to that, if you consider Java, Python, C# etc, you're using massive libraries at a very high abstraction level and it is considered normal. There isn't anything built into C like that.