Unix is a computer Operating System which is capable of handling activities from multiple users at the same time. The development of Unix started around 1969 at AT&T Bell Labs by Ken Thompson and Dennis Ritchie. This tutorial gives a very good understanding on Unix. Audience This tutorial has been prepared for the beginners to help them understand the basics to advanced concepts covering Unix commands, Unix shell scripting and various utilities. Prerequisites We assume you have adequate exposure to Operating Systems and their functionalities. A basic understanding on various computer concepts will also help you in understanding the various exercises given in this tutorial. Execute Unix Shell Programs If you are willing to learn the Unix/Linux basic commands and Shell script but you do not have a setup for the same, then do not worry The CodingGround is available on a highend dedicated server giving you real programming experience with the comfort of singleclick execution. Yes! It is absolutely free and online.