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

Product type Paperback

Published in May 2024

Publisher Packt

ISBN-13 9781805120278

Length 826 pages

Edition 5th Edition

Languages

PowerShell

Tools

PowerShell

Concepts

System Administration

Author (1):

Chris Dent

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Table of Contents (23) Chapters

Preface

1. Introduction to PowerShell FREE CHAPTER

2. Modules

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

About Generics

.NET has a concept called Generics and PowerShell, as a .NET language, can make use of generic types and methods.Microsoft describe this as follows in an article with the same name as this section:

Generic classes and methods combine reusability, type safety, and efficiency in a way that their non-generic counterparts cannot.

Source:

Generic classes

.NET has the concept of a generic class, some of these are very common such as System.Collections.Generic.List<T> where "T" is a type that must be declared when the instance is created. For example:

 [System.Collections.Generic.List[string]]::new()

Generic types avoid the cost of what is known as Boxing. This is where a value is wrapped in an instance of System.Object before it is stored.The cost of boxing is unlikely to be noticeable in the vast majority...

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Authors (1)

Chris Dent

Chris Dent is an automation specialist with deep expertise in the PowerShell language. Chris is often found answering questions about PowerShell in both the UK and virtual PowerShell user groups. Chris has been developing in PowerShell since 2007 and has released several modules over the years.

See other products by Chris Dent