2. What is Linux?
• - Linux is an open-source, Unix-like operating
system.
• - Created by Linus Torvalds in 1991.
• - Known for stability, security, and flexibility.
• - Used on servers, desktops, and embedded
systems.
3. Features of Linux
• - Open Source and Free
• - Multi-user and Multi-tasking
• - Highly Secure and Stable
• - Customizable and Modular
• - Command-Line Interface (CLI) and Graphical
User Interface (GUI)
4. Linux File System Structure
• - Root Directory: /
• - /home: User Files
• - /etc: Configuration Files
• - /var: Variable Data
• - /usr: User Programs and Utilities
5. Basic Linux Commands
• - ls: List Files
• - cd: Change Directory
• - pwd: Print Working Directory
• - mkdir: Create Directory
• - rm: Remove Files/Directories
6. User Management in Linux
• - whoami: Display Current User
• - adduser: Add a New User
• - passwd: Change Password
• - userdel: Delete a User
• - sudo: Execute as Superuser
10. Popular Linux Distributions
• - Ubuntu (User-Friendly)
• - Fedora (Cutting Edge)
• - Debian (Stable Base)
• - Arch Linux (Customizable)
• - CentOS (Enterprise)
11. Why Use Linux?
• - Free and Open Source
• - Security and Privacy
• - Lightweight and Fast
• - Ideal for Servers and Development
• - Large Community Support
