I like this: http://www.amazon.com/Practical-Guide-Commands-Editors-Programming/dp/013308504X/ref=sr_1_1?ie=UTF8&qid=1429305939&sr=8-1&keywords=sobell http://w

I like this: http://www.amazon.com/Practical-Guide-Commands-Editors-Programming/dp/013308504X/ref=sr_1_1?ie=UTF8&qid=1429305939&sr=8-1&keywords=sobell http://www.amazon.com/Practical-Guide-Commands-Editors-Progr... I've also found "Unix for the Impatient" very helpful but the 1995 copyright is a little scary.