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Mastering PowerShell Scripting

You're reading from   Mastering PowerShell Scripting Automate and manage your environment using PowerShell 7.1

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Product type Paperback
Published in Jun 2021
Publisher Packt
ISBN-13 9781800206540
Length 788 pages
Edition 4th 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 (26) Chapters Close

Preface 1. Introduction to PowerShell 2. Modules and Snap-Ins FREE CHAPTER 3. Working with Objects in PowerShell 4. Operators 5. Variables, Arrays, and Hashtables 6. Conditional Statements and Loops 7. Working with .NET 8. Strings, Numbers, and Dates 9. Regular Expressions 10. Files, Folders, and the Registry 11. Windows Management Instrumentation 12. Working with HTML, XML, and JSON 13. Web Requests and Web Services 14. Remoting and Remote Management 15. Asynchronous Processing 16. Graphical User Interfaces 17. Scripts, Functions, and Script Blocks 18. Parameters, Validation, and Dynamic Parameters 19. Classes and Enumerations 20. Building Modules 21. Testing 22. Error Handling 23. Debugging and Troubleshooting 24. Other Books You May Enjoy
25. Index

Logical operators

Logical operators evaluate two or more comparisons or other operations that produce a Boolean (true or false) result.

The following logic operators are available:

  • And: -and
  • Or: -or
  • Exclusive or: -xor
  • Not: -not and !

And

The -and operator returns $true if the values on the left-hand and right-hand side are both $true.

For example, each of the following returns $true:

$true -and $true
1 -lt 2 -and "string" -like 's*'
1 -eq 1 -and 2 -eq 2 -and 3 -eq 3
(Test-Path C:\Windows) -and (Test-Path 'C:\Program Files') 

Or

The -or operator returns true if the value on the left, or the value on the right, or both, are true.

For example, each of the following returns $true:

$true -or $true 
2 -gt 1 -or "something" -ne "nothing" 
1 -eq 1 -or 2 -eq 1 
(Test-Path C:\Windows) -or (Test-Path D:\Windows) 

Exclusive or

The -xor operator will return $true if...

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