Khaled Jamal 
Linux Commands By Example – A Straight and Practical Guide to Learn Linux Commands Rapidly [EPUB ebook] 

This book is intended for IT fellows who want to acquire a basic to intermediate Linux knowledge rapidly.I used many references to arrange it in such a way to be clear, extremely focused and practical.The key of getting full benefit is to install the nice tool in the first chapter, to read and execute the examples, by the end of this practice you will be able to use commands and deal comfortably with Linux.