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Learn PowerShell Core 6.0

You're reading from   Learn PowerShell Core 6.0 Automate and control administrative tasks using DevOps principles

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Product type Paperback
Published in Jul 2018
Publisher Packt
ISBN-13 9781788838986
Length 552 pages
Edition 1st Edition
Languages
Concepts
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Authors (2):
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David das Neves David das Neves
Author Profile Icon David das Neves
David das Neves
Jan-Hendrik Peters Jan-Hendrik Peters
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Jan-Hendrik Peters
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Toc

Table of Contents (21) Chapters Close

Preface 1. Current PowerShell Versions FREE CHAPTER 2. PowerShell ISE Versus VSCode 3. Basic Coding Techniques 4. Advanced Coding Techniques 5. Writing Reusable Code 6. Working with Data 7. Understanding PowerShell Security 8. Just Enough Administration 9. DevOps with PowerShell 10. Creating Your Own PowerShell Repository 11. VSCode and PowerShell Release Pipelines 12. PowerShell Desired State Configuration 13. Working with Windows 14. Working with Azure 15. Connecting to Microsoft Online Services 16. Working with SCCM and SQL Server 17. PowerShell Deep Dives 18. PowerShell ISE Hotkeys 19. Assessments 20. Other Books You May Enjoy

Working with events


Events are a staple of .NET developers looking to react to changes of an object, for example. A .NET class mimicking a coffee machine, for instance, would raise an event coffee dispensed whenever a coffee is ordered. We can react to three kinds of events in PowerShell, as well:

Cmdlet

Event description

Register-ObjectEvent

Events of .NET objects, for instance, the exited event of a System.Diagnostics.Process

Register-WmiEvent

Events of WMI classes, for instance, an event that is raised whenever a new process starts

Register-EngineEvent

Events of the PowerShell engine, for instance, an event triggered when PowerShell is closing

 

We will have a look at all three kinds of events through practical examples.

Object events

As we mentioned, object events are the bread and butter of developers, but that doesn't mean that operations people shouldn't be using them. One such event that is quite useful in an enterprise scenario is an event log subscription. In a running PowerShell session,...

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