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You're reading from Mastering PowerShell Scripting Automate repetitive tasks and simplify complex administrative tasks using PowerShell

Product type Paperback

Published in May 2024

Publisher Packt

ISBN-13 9781805120278

Length 826 pages

Edition 5th Edition

Languages

PowerShell

Tools

PowerShell

Concepts

System Administration

Author (1):

Chris Dent

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Table of Contents (25) Chapters

Who this book is for

What this book covers

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1. Introduction to PowerShell FREE CHAPTER

2. Modules

3. Variables, Arrays, and Hashtables

4. Working with Objects in PowerShell

5. Operators

6. Conditional Statements and Loops

7. Working with .NET

8. Files, Folders, and the Registry

9. Windows Management Instrumentation

10. Working with HTML, XML, and JSON

11. Web Requests and Web Services

12. Remoting and Remote Management

13. Asynchronous Processing

14. Graphical User Interfaces

15. Scripts, Functions, and Script Blocks

16. Parameters, Validation, and Dynamic Parameters

17. Classes and Enumerations

18. Testing

19. Error Handling

20. Debugging

21. Index

Working with WMI

The scope of WMI is vast, which makes it a fantastic resource for automating processes. WMI classes are not limited to the core operating system; it is not uncommon to find classes created after software or device drivers have been installed.

Given the scope of WMI, finding an appropriate class can be difficult. PowerShell can be used to explore the available classes.

WMI classes

PowerShell, as a shell for working with objects, presents WMI classes in a similar manner to .NET classes or any other object. There are several parallels between WMI classes and .NET classes.

A WMI class is used as the recipe to create an instance of a WMI object. The WMI class defines properties and methods. The Win32_Process WMI class is used to gather information about running processes in a similar manner to the Get-Process command.

The Win32_Process class has properties such as ProcessId, Name, and CommandLine. Win32_Process has a Terminate method that can be used to kill a process, as well as...