Introduction_to_Linux_Opeparating system (1).pptx

linux ppt

1. Introduction to Linux OS

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

7. Package Management - apt: Debian/Ubuntu - yum/dnf: RHEL/Fedora - pacman: Arch Linux - Install Example: sudo apt install <package> - Update Example: sudo apt update && sudo apt upgrade

8. Process Management - ps: View Running Processes - top: Real-Time Process Monitoring - kill: Terminate a Process - htop: Interactive Process Viewer - Example: kill <PID>

9. File Permissions in Linux - Read (r), Write (w), Execute (x) - chmod: Change Permissions - chown: Change Ownership - Example: chmod +x script.sh - View Permissions: ls -l

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