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PowerShell 7 Workshop

You're reading from   PowerShell 7 Workshop Learn how to program with PowerShell 7 on Windows, Linux, and the Raspberry Pi

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Product type Paperback
Published in Feb 2024
Publisher Packt
ISBN-13 9781801812986
Length 468 pages
Edition 1st Edition
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Author (1):
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Nick Parlow Nick Parlow
Author Profile Icon Nick Parlow
Nick Parlow
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Toc

Table of Contents (23) Chapters Close

Preface 1. Part 1: PowerShell Fundamentals
2. Chapter 1: Introduction to PowerShell 7 – What It Is and How to Get It FREE CHAPTER 3. Chapter 2: Exploring PowerShell Cmdlets and Syntax 4. Chapter 3: The PowerShell Pipeline – How to String Cmdlets Together 5. Chapter 4: PowerShell Variables and Data Structures 6. Chapter 5: PowerShell Control Flow – Conditionals and Loops 7. Chapter 6: PowerShell and Files – Reading, Writing, and Manipulating Data 8. Chapter 7: PowerShell and the Web – HTTP, REST, and JSON 9. Part 2: Scripting and Toolmaking
10. Chapter 8: Writing Our First Script – Turning Simple Cmdlets into Reusable Code 11. Chapter 9: Don’t Repeat Yourself – Functions and Scriptblocks 12. Chapter 10: Error Handling – Oh No! It’s Gone Wrong! 13. Chapter 11: Creating Our First Module 14. Chapter 12: Securing PowerShell 15. Part 3: Using PowerShell
16. Chapter 13: Working with PowerShell 7 and Windows 17. Chapter 14: PowerShell 7 for Linux and macOS 18. Chapter 15: PowerShell 7 and the Raspberry Pi 19. Chapter 16: Working with PowerShell and .NET 20. Answers to Activities and Exercises 21. Index 22. Other Books You May Enjoy

Chapter 11

Activity

Try running Remove-Module to get rid of the module we’ve just installed, and then running Get-Square. What happens? Why does this happen?

The Get-Square cmdlet is still available. This is because we saved the module in the module path correctly; this means that PowerShell will autoload the module when we call a function in the module. We can see it working in the following screenshot:

Figure A.13 – Autoloading with PowerShell

Figure A.13 – Autoloading with PowerShell

In the first line, I list the loaded modules. Then, I run Get-Square 7, which autoloads MyFirstModule. After that, I confirm that’s what happened by running Get-Module again. We can see that Remove-Module removes the Get-Square cmdlet by running it with the -Verbose switch in the last line.

Exercises

  1. Get-Module
  2. It imports a module into the global scope. Note that when we import a module from the command prompt, it is already imported into the global scope – we use...
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