Linux Roadmap – From Beginner to Power User

Master the Linux Operating System for Development, Administration, and Security

Basic overview

What is Linux?

Why Learn Linux?

Estimated time commitment for the roadmap.

Phases of the Linux Roadmap

Phase 1: Introduction to Linux

What is Linux? History and Distributions (Ubuntu, CentOS, Debian, etc.)

Difference Between Linux and Windows

Installing Linux (Dual Boot, VM, or WSL)

Basic Linux Architecture (Kernel, Shell, File System)

Phase 2: Basic Linux Commands

Navigating the File System (ls, cd, pwd)

File Operations (touch, cp, mv, rm)

Directory Management

Viewing File Content (cat, less, head, tail)

Searching (grep, find, locate)

Phase 3: File System & Permissions

File System Hierarchy (/etc, /home, /bin, /var, etc.)

File Types and Extensions

File Permissions (chmod, chown, umask)

Hard Links vs Soft Links

Mounting and Unmounting Drives

Phase 4: User and Group Management

Creating and Deleting Users/Groups

Switching Users (su, sudo)

User Permissions and Roles

/etc/passwd and /etc/group Files

Phase 5: Process and Job Management

Viewing Running Processes (ps, top, htop)

Killing Processes (kill, pkill, killall)

Foreground and Background Jobs

Scheduling with cron and at

Phase 6: Package Management

Package Managers by Distro (APT, YUM, DNF, Zypper)

Installing, Updating, and Removing Packages

Working with Repositories

Building Software from Source

Phase 7: Networking in Linux

IP, DNS, and Host Configuration

Common Networking Commands (ping, netstat, ifconfig, ip, ss)

Configuring iptables and Firewalls

SSH and Remote Access

Phase 8: Shell Scripting

Bash Basics: Variables, Conditionals, Loops

Writing Simple Shell Scripts

Automating Tasks

Error Handling in Scripts

Phase 9: System Administration Essentials

Disk Management (df, du, fdisk, mount)

System Logs and journalctl

Managing Services (systemctl, service)

Backup and Restore (rsync, tar, cron jobs)

Phase 10: Linux Security Basics

Understanding Root Privileges

User Authentication and Password Policies

Firewalls and SELinux

File Encryption and Secure Shell

Phase 11: Linux in DevOps & Cloud

Linux for Docker and Kubernetes

Working with Linux on AWS/GCP

CI/CD Automation Scripts in Linux

Using Linux for Deployment and Monitoring

Phase 12: Real-World Projects

Setting up a LAMP Stack

Hosting a Web Server using Apache/Nginx

Automating Backup with Shell Scripts

Custom Linux Command Line Tool (Mini CLI app)

Setup WordPress on Linux Server (Apache + MySQL)

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