caution this book is from hack the box I copied from the website in section linux fundementals and there is link each lesson that redirect you to hack the box website but the advantage of this book there is answer until permission Managemt that will make the book the new verison which will called (v2)

CAUTION THIS BOOK JUST FOR ARABICS and some leessons transleted not all lessons PLEASSE READ THIS CAREFULY

the answers by Mohamed almasoud who search about the answers

CAUTION there is another book will release that called linux v2

READ THIS CAREFULLY

note:obsidan