Welcome to this crucial section of our Linux Fundamentals course. Linux is renowned for its command-line interface (CLI), and mastering it is pivotal for anyone aiming to have a deep and functional understanding of Linux. Let's delve into what this section will cover:

1. Introduction to the Linux Command Line Interface (CLI): Begin your journey with an overview of the CLI, its significance, and its advantages over graphical user interfaces.
2. Understanding the Linux File System Hierarchy: Grasp the structured layout of Linux directories and files, which will provide a roadmap for your future interactions with the system.
3. File System Navigation and Finding Files: Learn the art of moving around the Linux file system seamlessly, and discover the tools to locate files and directories swiftly.
4. Creating and Viewing Files: Dive into the methods to create files and view their content, laying the foundation for your file manipulation skills.
5. File Permissions and Ownership: Unravel the intricate system of file permissions in Linux. Understand how to protect or share your files and directories, and comprehend the principles of file ownership.
6. The Nano Editor: Get introduced to Nano, a beginner-friendly text editor that is essential for making quick edits to files.
7. The Vi Editor: Explore Vi, one of the oldest and most powerful text editors in the Unix world. It might seem daunting initially, but its power and efficiency are unrivaled.
8. Basic Linux Commands Quiz: Test your newfound knowledge with a comprehensive quiz that ensures you've grasped the essential Linux commands.
9. Lab: Practice the Linux Terminal / CLI: Put theory into practice. Engage in hands-on exercises to solidify your command line skills, ensuring you're well-prepared for real-world Linux interactions.

By the end of this section, you'll be adept at navigating and manipulating the Linux environment using the command line, setting a strong foundation for more advanced topics in the future.

How to retain what you'll learn in this section

This section has several commands that will be demonstrated to you. It will be difficult for you to retain all of these commands by just watching the videos. We do our best here at Server Academy with challenging quizzes and hands-on IT labs, but ultimately you've got to roll up your sleeves and put it to work to remember.

Take what I'm showing you here in this section and try it in your own IT labs or any projects you've got going. The more you mess around with these commands outside of this course, the clearer it’ll become – when to use them, why they're handy, and all that.

So, don’t just stop here. Play around, make mistakes, and learn from them. And if you've got a real reason to use these commands, even better! The best way to understand them is to see them in action, doing something meaningful. Alright, with that said, let's keep moving forward! See you in the next lesson.