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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

Piping variables

The concept of piping isn't anything new to the scripting world. Piping, by definition, is directing the output of an object to another object. When you use piping in PowerShell, you are taking the output of one command and sending the data for use with another section of code. The manipulation can be either to a more legible format, or can be by selecting a specific object and digging deeper into those attributes. A pipe is designated by the '|' symbol and is used after you enter a command. The construct of a pipe looks like this: command | ResultManipulation | SortingObjects. If you need to access the individual items in the pipeline, you can leverage the pipeline output $_ command. This tells the pipeline to evaluate the results from the pipeline and their attributes.

The pipeline offers a wide variety of uses; you can leverage commands such as sort-object to sort by a specific attribute, format-list to format the objects into a list, and even the select...

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