[DivisibleByZero]

I'm not sure about books, but I can offer a bit of advice.

Try and get a friend who is good at Linux. Standing over the shoulder and watching someone using Bash, vim, etc helps a lot. I share some tidbit of system usage almost daily with my roommate and its done wonders for me.

[test001only]

I once tried doing this. My colleague was very good at vim and I though I will watch him use it. It just left me very demotivated. The speed with which he was doing things - I could not keep up. At least for me it is better to learn at my own pace and forcing my self to use it again and again until I am comfortable.