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Mastering Windows PowerShell Scripting (Second Edition)

You're reading from   Mastering Windows PowerShell Scripting (Second Edition) One-stop guide to automating administrative tasks

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Product type Paperback
Published in Oct 2017
Publisher Packt
ISBN-13 9781787126305
Length 440 pages
Edition 2nd Edition
Languages
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Authors (2):
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Chris Dent Chris Dent
Author Profile Icon Chris Dent
Chris Dent
Brenton J.W. Blawat Brenton J.W. Blawat
Author Profile Icon Brenton J.W. Blawat
Brenton J.W. Blawat
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Toc

Table of Contents (24) Chapters Close

Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface
1. Introduction to PowerShell FREE CHAPTER 2. Working with PowerShell 3. Modules and Snap-Ins 4. Working with Objects in PowerShell 5. Operators 6. Variables, Arrays, and Hashtables 7. Branching and Looping 8. Working with .NET 9. Data Parsing and Manipulation 10. Regular Expressions 11. Files, Folders, and the Registry 12. Windows Management Instrumentation 13. HTML, XML, and JSON 14. Working with REST and SOAP 15. Remoting and Remote Management 16. Testing 17. Error Handling

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 itself is well equipped to explore the available classes.

WMI classes

PowerShell, as a shell for working with objects, presents WMI classes in a very similar manner to .NET classes or any other object. There are a number of 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 WMI class Win32_Process 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. It has a terminate method that can be used to kill a process, as...

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