This book is indispensable for getting you prepared for the exam。 You may also， however， need to do outside reading on sed， awk， grep， and Bash scripting for the exam。 And it is useful in getting you "caught up" if you have been away from Linux for a while。 I think I will read this book over and over throughout the years， even though I have already passed the Linux+。 This book is indispensable for getting you prepared for the exam。 You may also， however， need to do outside reading on sed， awk， grep， and Bash scripting for the exam。 And it is useful in getting you "caught up" if you have been away from Linux for a while。 I think I will read this book over and over throughout the years， even though I have already passed the Linux+。 。。。more