Linux Mastery

Introduction

Why Linux?

How To Use This Course

AI as Tutor & Learning Partner

Part I — Linux Foundations

01 Linux Architecture

• Introduction
• What Linux Actually Is
• GNU and User Space
• BIOS and UEFI
• GRUB Bootloader
• The Linux Kernal
• Systemd and the Init System
• Desktop Environments
• The Linux File System
• Linux is Precise
• Linux Woprkflows are Modular
• Learning Linux Through Experimentation
• Linux Distros
• Problem sets

02 — Filesystems & Storage

• Introduction
• Root File Systems
• Important Linux Directories
• Home User Files
• System Configuration
• /boot - Boot Files
• /dev - Devices as Files
• File Systems
• Mounting and Unmounting
• Temporary vs Persistant Storage
• Logs and /var
• Devices, Partitions and Storage Types
• UUIDs and Stable Mounting
• Exploring Linux Safely
• Learning Through Observation
• Practice Sets

03 — Processes, Memory & the Running System

• What is a Process
• Viewing Running Processes
• Real-Time Process Monitoring
• Understanding Memory
• System Uptime and Load
• Foreground and background Jobs
• Killing Processes
• Process Trees
• Linux Scheduler
• Daemons
• Signals
• Top/Htop

04 — Creating & Managing Files

• touch
• mkdir
• cp
• mv
• rm
• Hidden Files
• File Naming
• Wildcards
• File Organization

05 — Permissions & Ownership

• chmod
• chown
• Groups
• rwx Permissions
• Octal Permissions
• sudo
• Security Basics

06 — Navigation & Directory Mastery

• pwd
• cd
• ls
• Relative Paths
• Absolute Paths
• Tree Structures
• Symbolic Links

07 — Viewing & Reading Files

• cat
• less
• more
• head
• tail
• file
• wc

08 — Searching & Finding

• grep
• find
• locate
• which
• whereis
• Regular Expressions

09 — Pipes & Redirection

• Pipes
• stdin/stdout/stderr
• >
• > >
• 2>
• tee
• Combining Commands

10 — Compression, Archives & Backups

• zip
• unzip
• tar
• gzip
• xz
• rsync
• Backups
• Snapshots

Part II — The Linux Environment

11 — Shells & Environment Variables

• bash
• zsh
• Environment Variables
• PATH
• Shell Configuration
• .bashrc

12 — Package Management & Software Installation

• apt
• repositories
• updates
• dependencies
• Flatpak
• Snap

13 — Users, Groups & Administration

• useradd
• passwd
• groups
• sudo
• root
• privilege separation

14 — Services, Boot & systemd

• systemd
• services
• daemons
• startup
• journalctl
• targets

15 — Networking Fundamentals

• IP addresses
• ping
• ports
• DNS
• routing
• interfaces
• Wi-Fi

16 — SSH & Remote Systems

• SSH
• sshd
• remote login
• scp
• rsync
• tmux
• screen

Part III — Automation & Power Tools

17 — Shell Scripting Fundamentals

• Bash Scripts
• Variables
• Loops
• Conditions
• Functions
• Automation

18 — grep Mastery

• Advanced grep
• Pattern Matching
• Regex
• Recursive Search
• Filtering Logs

19 — sed & awk

• Stream Editing
• Text Processing
• Automation
• Reports
• Data Extraction

20 — Monitoring & Troubleshooting

• logs
• dmesg
• journalctl
• ps
• top
• memory analysis
• troubleshooting workflows

21 — Recovery & Repair

• GRUB
• fsck
• boot repair
• recovery modes
• permissions recovery
• backups

Part IV — Security & Systems Thinking

22 — Linux Security Fundamentals

• permissions
• attack surfaces
• malware
• updates
• firewalls
• secure practices

23 — Cryptography & System Defense

• hashing
• encryption
• public/private keys
• certificates
• SSH keys
• TLS
• operational security

Appendices

Appendix A — Core Linux Concepts

Topics include:

• journaling
• recursion
• swap
• pipes
• inodes
• signals
• daemons
• scheduler
• TTYs
• process trees
• environment variables

Appendix B — Linux Editing Tools

Topics include:

• nano
• vim
• xed
• VS Code
• LibreOffice Writer
• SSH editing workflows

Appendix C — Copying, Pasting & Working With Text

Topics include:

• clipboard operations
• terminal copy/paste
• drag and drop
• selecting text
• transferring output into AI systems
• closing terminal sessions safely

Appendix D — Compression, Archives & Backups

Topics include:

• zip
• unzip
• tar
• gzip
• xz
• rsync
• backup strategies

Appendix E — Shell Scripting & Automation

Topics include:

• bash scripting
• variables
• loops
• cron
• automation workflows

Appendix F — Programming & Development Tools

Topics include:

• Python
• C
• git
• comp

ilers

• VS Code
• APIs
• debugging

Appendix G — Networking & Remote Systems

Topics include:

• SSH
• ports
• IP addressing
• remote administration
• scp
• rsync
• networking tools

Appendix H — System Recovery & Troubleshooting

Topics include:

• logs
• journalctl
• GRUB
• filesystem repair
• rescue workflows

Appendix I — Security, Cryptography & System Defense

Topics include:

• malware
• ransomware
• authentication
• cryptography
• network defense
• firewalls
• operational security
• intrusion concepts

Philosophy of This Course

Linux Mastery is designed as:

• a guided learning system
• a technical reference
• a problem-solving framework
• an AI-assisted learning environment

The goal is not merely memorization of commands.

The goal is:

• technical literacy
• systems thinking
• operational confidence
• self-directed learning
• understanding how modern computing systems function