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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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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

PowerShell Variables and Data Structures

It’s time to really understand what we mean when we talk about variables. Variables are a common concept in computer science and mathematics, so it’s important to have a good grasp of what they are and how they are used in PowerShell.

We’ll start by exploring what a variable is, both literally and metaphorically. We will look at how we can use them in PowerShell and contrast the way PowerShell works with other languages. We will explore the concept of primitives, the basic building blocks of data, before moving on to the common data structures that PowerShell uses. Finally, we’ll have some fun with splatting, an important and useful technique for simplifying cmdlets.

In this chapter, we’re going to cover the following main topics.

  • Understanding PowerShell variables
  • Exploring object types
  • Discovering value types
  • Typing explained
  • Navigating reference types
  • Splatting –...
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