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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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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

Looping structures


PowerShell provides a variety of looping structures for evaluating and executing objects. Loops are helpful in situations where you need to take in an array of objects and process the individual values in the array. Subsequently, loops are also helpful in situations where you need to wait for a specific value within an array before proceeding in the script.

There are four main looping structures in PowerShell. These looping structures include Do/While, Do/Until, ForEach, and For. The Do/While looping structure is used to execute a task when a value doesn't equal a specific value. The inverse of this looping structure is Do/Until, where it will keep looping the structure until a value equals a specific value. ForEach is a looping structure that allows you to process each individual object in an array or set of objects. The For loop is typically used to execute a task a set number of times.

To create a new Do/While looping structure, you first start by declaring the Do command...

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