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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

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 sides 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')

The -and operator is often combined with the -or operator.

or

The -or operator returns true if the value on the left, 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)

The...

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