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Mastering Windows PowerShell Scripting (Second Edition)

Mastering Windows PowerShell Scripting (Second Edition)

By : Chris Dent, Brenton J.W. Blawat
3.3 (8)
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Mastering Windows PowerShell Scripting (Second Edition)

Mastering Windows PowerShell Scripting (Second Edition)

3.3 (8)
By: Chris Dent, Brenton J.W. Blawat

Overview of this book

PowerShell scripts offer a handy way to automate various chores. Working with these scripts effectively can be a difficult task. This comprehensive guide starts from scratch and covers advanced-level topics to make you a PowerShell expert. The first module, PowerShell Fundamentals, begins with new features, installing PowerShell on Linux, working with parameters and objects, and also how you can work with .NET classes from within PowerShell. In the next module, you’ll see how to efficiently manage large amounts of data and interact with other services using PowerShell. You’ll be able to make the most of PowerShell’s powerful automation feature, where you will have different methods to parse and manipulate data, regular expressions, and WMI. After automation, you will enter the Extending PowerShell module, which covers topics such as asynchronous processing and, creating modules. The final step is to secure your PowerShell, so you will land in the last module, Securing and Debugging PowerShell, which covers PowerShell execution policies, error handling techniques, and testing. By the end of the book, you will be an expert in using the PowerShell language.
Table of Contents (18 chapters)
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Logical operators


Logical operators are used to 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 will returntrue if the value 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 will return true if either 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 either the value on the left is true, or the value on the right is true, but not both.

For example, each of the following returns true...

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