Course Content
🗓️ Day 1 – Getting Started with Linux
• Understand what Linux is and why it’s essential for DevOps and AI. • Learn basic terminal commands: pwd, ls, cd. • Explore the filesystem hierarchy and directory structure. • Practice moving around the shell confidently.
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Introduction to Linux
The Terminal & The Shell
Navigating the Filesystem
Absolute vs. Relative Paths
Hands‑On Lab & Challenge
Wrap‑Up & Next Steps
🗓️ Day 2 – Working with Files and Directories
• Create, view, and edit files using touch, cat, nano. • Organize directories with mkdir, rmdir, cp, mv. • Understand absolute vs. relative paths. • Hands‑on: build a mini project folder structure.
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Introduction to Files and Directories
Creating and Viewing Files
Viewing File Contents in Detail
Directory Operations
Hands‑On Lab
Wrap‑Up & Challenge
🗓️ Day 3 – Permissions and Ownership
• Learn how Linux manages read, write, and execute permissions. • Commands: chmod, chown, chgrp. • Understand user roles (root, user, group). • Practice fixing permission errors and securing files.
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Introduction to Permissions
Understanding Users and Groups
Changing Permissions
Changing Ownership
Hands‑On Lab
Wrap‑Up & Challenge
🗓️ Day 4 – Processes and Services
• Understand what processes are and how to monitor them. • Commands: ps, top, kill, systemctl. • Learn how services start, stop, and restart. • Hands‑on: manage a simple service like nginx or ssh.
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Introduction to Processes
Monitoring Processes
Managing Processes
Services and Systemctl
Hands‑On Lab
Wrap‑Up & Challenge
🗓️ Day 5 – Networking and Remote Access
• Basics of IP addresses, ports, and protocols. • Commands: ping, ip, ssh, scp. • Learn secure remote connections and file transfers. • Practice connecting to a remote server.
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Introduction to Networking Basics
Checking Connectivity
Secure Remote Connections
File Transfers with SCP
Hands‑On Lab
Wrap‑Up & Challenge
🗓️ Day 6 – Shell Scripting Essentials
• Introduction to shell scripting and variables. • Write simple scripts using echo, loops, and conditionals. • Learn how to make scripts executable. • Hands‑on: automate a daily task (e.g., backup or log cleanup).
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Introduction to Shell Scripting
Variables and Basic Commands
Conditionals and Loops
Making Scripts Executable
Hands‑On Lab
Wrap‑Up & Challenge
Introduction to the Linux Terminal

Welcome to the absolute beginning of your cloud and systems engineering journey. Before you can automate deployments, build scalable infrastructure, or orchestrate containers, you must first learn how to walk and talk in the environment where the modern internet lives.

You need to learn the native language of the cloud: Linux.

This 6-day introductory course is designed specifically for beginners. It strips away the overwhelming complexity of system administration and focuses entirely on the core survival skills you need to navigate a server with confidence.

What is Linux?

At its core, Linux is an operating system, just like Windows or macOS. However, unlike the operating system on your personal laptop, Linux was built from the ground up for stability, security, and performance at a massive scale.

Because it is open-source and incredibly lightweight, it has become the undisputed engine of the modern world. Linux powers over 90% of the public cloud (AWS, Azure, Google Cloud), the world’s top 500 supercomputers, the majority of global web servers, and the underlying infrastructure for AI development. If you are building a career in tech, Linux is not just an optional skill—it is mandatory.

The Terminal: GUI vs. CLI

When you use a personal computer, you rely on a Graphical User Interface (GUI). You click icons, drag windows, and use a mouse to navigate.

In the professional world of cloud computing, servers are “headless.” They sit in massive data centers without monitors, keyboards, or mice attached to them. Because graphic interfaces consume massive amounts of memory and processing power, servers don’t run them.

Instead, you interact with the server using a Command Line Interface (CLI)—often referred to simply as “the terminal.” You type specific text commands, and the server obeys. While this feels intimidating at first, typing commands is vastly more efficient than clicking. It allows engineers to write scripts that can execute thousands of commands across hundreds of servers in a matter of seconds.

How the Terminal Works

When you open a terminal, you are interacting with a program called a Shell (most commonly one called bash).

Think of the shell as a translator. The core brain of the operating system (the Kernel) only understands raw machine code. When you type a human-readable command into the terminal and press Enter, the shell catches that text, translates it into machine instructions, hands it to the Kernel to execute, and then prints the result back onto your screen.

The DigiSpidey Linux Simulator: Your Safe Sandbox

Learning the terminal can be nerve-wracking because there is no “Undo” button. Typing the wrong command on a real server can cause permanent damage.

To remove that friction, this course includes The DigiSpidey Linux Simulator. Built directly into your daily lessons, this interactive, browser-based terminal allows you to practice every single command safely. It looks, feels, and reacts exactly like a real Ubuntu server.

You will use this simulator to complete your daily lab tasks. If you get stuck or make a catastrophic mistake, simply refresh your web browser to instantly rebuild your server and start over.

The Scope of the Course: Your 6-Day Roadmap

Over the next six days, you will progress from passive navigation to active system control. Each day focuses on a distinct survival skill:

  • Day 1: Getting Started & Navigation Learn how to move around the server without a mouse. You will master the Filesystem Hierarchy Standard (FHS) and learn how to find exactly where you are and what is around you.

  • Day 2: File Operations & Text Processing Transition from exploring to building. You will learn the daily “office work” of a systems engineer: creating directories, making files, copying data, and safely deleting resources.

  • Day 3: Permissions, Security & User Management Linux is a multi-user fortress. You will learn how the system locks down files, how to read “Permission Denied” errors, and how to safely borrow administrator (root) powers to bypass restrictions.

  • Day 4: Process Management & System Monitoring Servers eventually slow down or freeze. You will learn how to check the server’s vital signs (RAM and Disk space), hunt down malfunctioning applications, and forcefully terminate them.

  • Day 5: Networking Fundamentals & Remote Access No server exists in isolation. You will learn how to identify your machine on the network, test its connection to the outside world, and generate the cryptographic keys required to log into other servers securely.

  • Day 6: Automation & Wargame Capstone We bring it all together. You will write your first automated script and use the tools you have mastered to hunt down a hidden file. Finally, you will connect to a live, external server to prove you are ready for the real world.

By the end of this week, the black screen and green text will no longer look like an alien language. You will be ready to tackle real-world servers. Let’s begin Day 1.

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