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

Product type Paperback

Published in Feb 2024

Publisher Packt

ISBN-13 9781801812986

Length 468 pages

Edition 1st Edition

Languages

PowerShell

Tools

Linux

Concepts

System Administration

Author (1):

Nick Parlow

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Table of Contents (23) Chapters

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

Why subscribe?

22. Other Books You May Enjoy

Securing PowerShell against inadvertent mistakes

The first set of tools we’ll look at are the ones that protect us from people doing things by accident. The most useful of these is a built-in execution policy that can be used to control how scripts can be run.

Execution policy

We encountered the execution policy feature back in Chapter 8, Writing Our First Script – Turning Simple Cmdlets into Reusable Code, and noted that we would cover it in more detail in this chapter. The execution policy is a safety feature that controls how we can run scripts, but only in a Windows environment. Don Jones (the Don!) has described the execution policy as intended to “…slow down an uninformed user who is unintentionally trying to run an untrusted script.” There is a lot of unintentionality in that sentence. The execution policy will present a few obstacles to an educated user who is deliberately trying to run a script. The best way to stop a user from running...