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Mastering PowerShell Scripting

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

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Product type Paperback
Published in May 2024
Publisher Packt
ISBN-13 9781805120278
Length 826 pages
Edition 5th 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 (23) Chapters Close

Preface 1. Introduction to PowerShell 2. Modules FREE CHAPTER 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. Other Books You May Enjoy
22. Index

Error actions

The ErrorAction parameter and the ErrorActionPreference variable are used to control what happens when a non-terminating error is encountered, subject to the previous notes about throw.

The ErrorAction parameter is made available on advanced functions, script blocks, and scripts when either the CmdletBinding attribute is used or more parameters in a script use the Parameter attribute.

By default, ErrorAction is set to Continue. Non-terminating errors will be displayed, but a script will continue to run.

ErrorActionPreference is a scoped variable, which can be used to affect all commands in a particular scope and any child scopes. By default, ErrorActionPreference is set to Continue. The variable can be overridden in child scopes (such as a function inside a script).

All errors in a session are implicitly added to the reserved variable Error unless the error action is set to Ignore. The Error variable is an ArrayList and contains each error in the session...

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