And with very good reasons. A good number of even the experienced users have no idea of how Ohm's law relates to powering electronics, so I think leaving that subject out of a new users guide might have been a good idea. (I was contemplating putting something in there for R-PI users.)
@calchef In my signature, below, you'll find links to doc's and How-To's. I think you may be beyond the new users guide but I can say, as you're finding, when working on the command line exacting attention to detail is important.
I'm assuming you picked up on the fact I was being facetious.