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Mastering PowerShell Scripting

You're reading from   Mastering PowerShell Scripting Automate and manage your environment using PowerShell 7.1

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Product type Paperback
Published in Jun 2021
Publisher Packt
ISBN-13 9781800206540
Length 788 pages
Edition 4th Edition
Languages
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Author (1):
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Chris Dent Chris Dent
Author Profile Icon Chris Dent
Chris Dent
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Table of Contents (26) Chapters Close

Preface 1. Introduction to PowerShell 2. Modules and Snap-Ins FREE CHAPTER 3. Working with Objects in PowerShell 4. Operators 5. Variables, Arrays, and Hashtables 6. Conditional Statements and Loops 7. Working with .NET 8. Strings, Numbers, and Dates 9. Regular Expressions 10. Files, Folders, and the Registry 11. Windows Management Instrumentation 12. Working with HTML, XML, and JSON 13. Web Requests and Web Services 14. Remoting and Remote Management 15. Asynchronous Processing 16. Graphical User Interfaces 17. Scripts, Functions, and Script Blocks 18. Parameters, Validation, and Dynamic Parameters 19. Classes and Enumerations 20. Building Modules 21. Testing 22. Error Handling 23. Debugging and Troubleshooting 24. Other Books You May Enjoy
25. Index

Initializing and removing modules

The content of the root module executes every time a module is imported. You can use a root module file to perform initialization steps, for example, initializing a cache, importing static data, or setting a default configuration.

These steps are extra code that you must add to the root module at the beginning or end of the file.

In some cases, it is desirable to execute actions before a module is imported or when a module is removed.

You can use the ScriptsToProcess property in a module manifest to execute code in the caller scope before a module is imported.

The ScriptsToProcess property

You can use the ScriptsToProcess property in the module manifest to run scripts in the caller scope before importing the module. The caller is the entity importing the module; if that is an end user in the global scope, then ScriptsToProcess is executed in the global scope. If the module is imported by another script, ScriptsToProcess is...

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