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  • Book Overview & Buying Mastering PowerShell Scripting
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Mastering PowerShell Scripting

Mastering PowerShell Scripting - Fourth Edition

By : Chris Dent
4 (19)
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Mastering PowerShell Scripting

Mastering PowerShell Scripting

4 (19)
By: Chris Dent

Overview of this book

PowerShell scripts offer a convenient way to automate various tasks, but working with them can be daunting. Mastering PowerShell Scripting takes away the fear and helps you navigate through PowerShell's capabilities.This extensively revised edition includes new chapters on debugging and troubleshooting and creating GUIs (online chapter). Learn the new features of PowerShell 7.1 by working with parameters, objects, and .NET classes from within PowerShell 7.1. This comprehensive guide starts with the basics before moving on to advanced topics, including asynchronous processing, desired state configuration, using more complex scripts and filters, debugging issues, and error-handling techniques. Explore how to efficiently manage substantial amounts of data and interact with other services using PowerShell 7.1. This book will help you to make the most of PowerShell's automation features, using different methods to parse data, manipulate regular expressions, and work with Windows Management Instrumentation (WMI).
Table of Contents (26 chapters)
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24
Other Books You May Enjoy
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Index

Type operators

Type operators are designed to work with and test .NET types. The following operators are available:

  • As: -as
  • Is: -is
  • Is not: -isnot

These operators may be used to convert an object of one type into another, or to test whether or not an object is of a given type.

As

The -as operator is used to attempt to convert a value into an object of a specified type. The operator returns null (without throwing an error) if the conversion cannot be completed.

For example, the operator may be used to perform the following conversions:

"1" -as [Int32] 
'String' -as [Type] 

If the attempt to convert the value fails, nothing is returned and no error is raised:

$true -as [DateTime]

The -as operator can be useful for testing whether a value can be cast to a specific type, or whether a specific type exists.

For example, the System.Windows.Forms assembly is not imported by default and the System.Windows...

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