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Mastering Windows PowerShell Scripting

You're reading from   Mastering Windows PowerShell Scripting Automate and manage your environment using PowerShell Core 6.0

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Product type Paperback
Published in Feb 2019
Publisher Packt
ISBN-13 9781789536669
Length 626 pages
Edition 3rd Edition
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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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Toc

Table of Contents (27) Chapters Close

Preface 1. Section 1: Exploring PowerShell Fundamentals FREE CHAPTER
2. Introduction to PowerShell 3. Modules and Snap-ins 4. Working with Objects in PowerShell 5. Operators 6. Section 2: Working with Data
7. Variables, Arrays, and Hashtables 8. Branching and Looping 9. Working with .NET 10. Strings, Numbers, and Dates 11. Regular Expressions 12. Files, Folders, and the Registry 13. Windows Management Instrumentation 14. HTML, XML, and JSON 15. Web Requests and Web Services 16. Section 3: Automating with PowerShell
17. Remoting and Remote Management 18. Asynchronous Processing 19. Section 4: Extending PowerShell
20. Scripts, Functions, and Filters 21. Parameters, Validation, and Dynamic Parameters 22. Classes and Enumerations 23. Building Modules 24. Testing 25. Error Handling 26. Other Books You May Enjoy

Repetition

A quantifier is used to repeat an element. Three examples of quantifiers have already been introduced: *, +, and ?. The quantifiers are as follows:

Description

Character

Example

The preceding character repeated zero or more times

*

'abc'-match 'a*'

'abc'-match '.*'

The preceding character repeated one or more times

+

'abc'-match 'a+'

'abc'-match '.+'

Optional character

?

'abc' -match 'ab?c'

'ac' -match 'ab?c'

A fixed number of characters

{exactly}

'abbbc' -match 'ab{3}c'

A number of characters within a range

{min,max}

'abc' -match 'ab{1,3}c'

'abbc' -match 'ab{1,3}c'

'abbbc' -match 'ab{1,3}c'

Specifies a minimum number...

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