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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

String methods and arrays

In PowerShell, you can call some string methods on an array. PowerShell automatically unrolls the array and executes the method. Array unrolling applies when accessing properties as well; however, this does not apply to strings.The method will be executed against each of the elements in the array. For example, the Trim method is used against each of the strings as follows:

PS> ('azzz', 'bzzz', 'czzz').Trim('z')
a
b
c

The Split method is also capable of acting against an array, the result of the following example is a single array containing four elements:

PS> ('a,b', 'c,d').Split(',')
a
b
c
d

This remains true if the array object does not have a conflicting method or property. For example, the Insert method cannot be used as an array object has a version of its own.

Properties and methods of array elements

The array unrolling feature demonstrated here has broader scope than methods...

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