This presentation provides a clear and concise introduction to the fundamentals of Unix, making it a valuable resource for beginners and anyone looking to refresh their understanding of this powerful operating system. Understanding core concepts such as the Unix file system, shell commands, processes, and permission models lays a strong foundation for working efficiently in Linux/Unix environments. The structured format and easy-to-follow explanations help demystify topics that can often seem complex to new users. Overall, this tutorial is a great starting point for learners aiming to build confidence with Unix basics and apply these skills in real-world development or system administration tasks.