Book Image

Mastering PowerShell Scripting - Fourth Edition

By : Chris Dent
5 (1)
Book Image

Mastering PowerShell Scripting - Fourth Edition

5 (1)
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)
24
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25
Index

Parameters, values, and parameter sets

As seen while looking at syntax in Get-Help, commands accept a mixture of parameters. The following sections show how these parameters are described in help and how to use them.

Parameters

When viewing help for a command, several different conventions are used to describe when a parameter is required and how it should be used. These conventions include:

  • Optional parameters, where parameter names and arguments are enclosed in a single pair of square brackets.
  • Optional positional parameters, the same as an optional parameter but with the parameter name also enclosed in square brackets.
  • Mandatory parameters, where the parameter name and argument are not bracketed.
  • Mandatory positional parameters, where the parameter name is in square brackets, but the argument is not.

The following sections show each of these conventions in greater detail.

Optional parameters

Optional parameters are surrounded...