Linux Concepts

Tables of Contents

• Operating System
• Kernel structure
  

History

• How it all started?
• How it evolved?
• Open Source SW vs. Freeware
• What is GPL?
• Problems with the GPL?
  

Introduction to Linux:

• What is Linux ?
• Why we use Linux?
• What is Open Source?
• Linux: Properties?
• Directory structure?
  

Command Line Interface

• Command Line/User Interfacing

Introduction to Shell

• Introducing shell
• Type of shells
• Bash files
• Environment Variables
• Basic Shell Commands
• Absolute & Relative path

VIsual editor

• What is VIsual editor
• Cursor Movement
• Basic vi commands
• Escape mode or Command mode
• Useful Shortcuts
• Visual Mode

Shell Scripting - Basics

• Programming languages
• A comparison
• Shell script
• Where to use?
• Invoking scripts
• Variables
• Whitespace & Line-breaks
• Special characters
• Quotes
• Expressions
• If-then condition
• If-then-elif

Shell Scripting - Intermediate

• String tests
• Numeric tests
• Logical operators
• For loop
• While loop
• Case statement
• Functions
• Arrays
• Command line arguments

Linux Systems

• How it Works?
• Shell commands - Advanced

User Interface

• User Specific Command Set
• Remote login and remote copy

File related commands

• File redirection
• Piping
• File Related commands
• File Detailed Listing
• Linux file types
• File permissions
• Find command
• Cut command
• Split command
• tr command
• File compression
• Usage flow
• Usage example
• File archival
• Usage flow
• Regular expressions
• Grep command
• Sed command