I am very new to Unix, and now that I'm using the system in my home since getting rid of Winblows and converting to Mac systems, I thought I should at least know as much as I do about Win systems. The starter guide on this forum was helpful, but I wanted to get more in-depth, and figure out not only the commands, but the aliases and shortcuts for them, and when to use what shell, etc...
I looked for a bit, and found a REALLY good tutorial that walks you through each step of navigating around Unix. It's really in-depth, and I've learned a lot from it already.
http://www.ee.surrey.ac.uk/Teaching/Unix/