Learning Linux Shell Scripting

Introduction

• Welcome
• What you should know

1. Shell Scripting Basics

• Printing to the console
• chmod
• Comments
• The shebang
• Creating and using variables
• Passing parameters
• Challenge: Create a script
• Solution: Create a script

2. Branching and Loops

• The if statement
• The else clause
• The elif clause
• The while loop
• The for loop
• Using break and continue
• Challenge: Counter
• Solution: Counter

3. Environment Variables

• Reading environment variables
• Standard environment variables
• Challenge: Display a variable
• Solution: Display a variable

4. Functions

• The basics of functions
• Using parameters
• Piping
• Challenge: Pipes and functions
• Solution: Pipes and functions

5. File Operations

• Reading files
• Writing files
• File checksums
• Challenge: Read a text file
• Solution: Read a text file

6. Sleep and Process

• Using the sleep command
• Watching a process
• Challenge: Watch a script
• Solution: Watch a script

7. Interactive Scripts

• Getting input from users
• Handling bad data
• Challenge: Guessing game
• Solution: Guessing game

Conclusion

• Next steps