Contents

1. Introduction

1. Introduction to Operating Systems

2. Different Services Provided by Operating System to Users    

3. Introduce the Concept of Process, Process States, Process Control Block…..  

4. Introduction to Linux Operating System - Features of Linux…….

5. Working with Linux - The Login Prompt, General Features of Commands…..

6. Understanding of Some Basic Commands such as echo,…..

2. Commands and Processes 

1. What is a Command? Meaning of Internal and External Commands

2. Operating System Processes - Concept   

3. The nice Command, Background Processes…..

3. File System 

1. Linux Files - Naming Files, Basic File Types

2. Organization of Files  

3. Standard Directories   

4. Parent Child Relationship   

5. The Home Directory and the Home Variable    

6. The PATH Variable, Manipulating the PATH    

7. Relative and Absolute Pathnames  

8. Directory Commands – pwd, cd, mkdir, rmdir Commands    

9. File Related Commands – cat, mv, rm, cp, wc and od Commands 

10.File Attributes and Permissions  

11.The ls Command with Options 

12.Changing File Permissions: The Relative and Absolute Permissions Changing Methods   

4. Using Shells and Vi Editor  

1. Shell  

2. Files and Redirection  

3. VI Editor   

5. Security and Networking                          

1. Security    

2. Networking  

6. Shell Scripts    

1. Shell Programming

2. File Inodes and the Inode Structure    

3. File Links – Hard and Soft Links 

4. Filters

5. Head and Tail Commands 

6. Cut and Paste Commands 

7. The Sort Command and its Usage with Different Options