Learning Bash Scripting

Explore basic concepts and specifics of shell administration with Bash.

Introduction

• Learning Bash scripting
• Introducing GitHub Codespaces
• Using GitHub Codespaces with this course
• Using Bash in GitHub Codespaces

1. Using Bash

• What's Bash?
• Pipes and redirections
• Bash built-ins and other commands
• Brackets and braces in Bash
• Bash expansions and substitutions
• Brace expansion
• Parameter expansion
• Command substitution
• Arithmetic expansion

2. Programming with Bash

• Understanding Bash script syntax
• Choosing a text editor for Bash scripting
• Displaying text with "echo"
• Working with variables
• Working with numbers
• Comparing values with test
• Comparing values with extended test
• Formatting and styling text output
• Formatting output with printf
• Working with arrays
• Challenge: Make a script that generates a system report
• Solution: Make a script that generates a system report

3. Bash Control Structures

• Conditional statements with the "if" keyword
• Working with "while" and "until" loops
• Introducing "for" loops
• Selecting behavior using "case"
• Using functions
• Reading and writing text files
• Challenge: Build a script using control structures
• Solution: Build a script using control structures

4. Interacting with the User

• Working with arguments
• Working with options
• Getting input during execution
• Ensuring a response
• Challenge: Make a script that uses input
• Solution: Make a script that uses input

5. Bash in the Real World

• Troubleshooting
• Ensuring script portability

Conclusion

• Next steps