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Mastering Windows PowerShell Scripting

You're reading from   Mastering Windows PowerShell Scripting Master the art of automating and managing your Windows environment using PowerShell

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Product type Paperback
Published in Apr 2015
Publisher
ISBN-13 9781782173557
Length 282 pages
Edition 1st Edition
Languages
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Author (1):
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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 (16) Chapters Close

Preface 1. Variables, Arrays, and Hashes FREE CHAPTER 2. Data Parsing and Manipulation 3. Comparison Operators 4. Functions, Switches, and Loops Structures 5. Regular Expressions 6. Error and Exception Handling and Testing Code 7. Session-based Remote Management 8. Managing Files, Folders, and Registry Items 9. File, Folder, and Registry Attributes, ACLs, and Properties 10. Windows Management Instrumentation 11. XML Manipulation 12. Managing Microsoft Systems with PowerShell 13. Automation of the Environment 14. Script Creation Best Practices and Conclusion Index

Error and exception handling – parameters

PowerShell offers several different options to achieve error and exception handling. The most popular method used to catch non-terminating errors is bypassing error and exception handling parameters while executing PowerShell cmdlets. If a cmdlet detects a non-terminating error during runtime, the PowerShell Common Language Runtime (CLR) has the ability to store the error information in variables. You can then call the error variable and execute other actions based on the contents of the $error variable.

The PowerShell parameters that handle error and exceptions are –WarningAction and –ErrorAction. When an issue occurs with your script, the PowerShell CLR will reference the –ErrorAction and –WarningAction arguments to determine what the next step for the script is.

There are five actions that are supported within PowerShell. The SilentlyContinue action will suppress the error and warning information, populate the...

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