Book Image

Mastering Windows PowerShell Scripting - Third Edition

By : Chris Dent
Book Image

Mastering Windows PowerShell Scripting - Third Edition

By: Chris Dent

Overview of this book

PowerShell scripts offer a handy way to automate various chores, however working effectively with these scripts can be a difficult task. This comprehensive guide starts with the fundamentals before moving on to advanced-level topics to help you become a PowerShell Core 6.0 expert. The first module, PowerShell Core 6.0 Fundamentals, begins with the new features of PowerShell Core 6.0, installing it on Linux, and working with parameters, objects and .NET classes from within PowerShell Core 6.0. As you make your way through the chapters, you'll see how to efficiently manage large amounts of data and interact with other services using PowerShell Core 6.0. You'll be able to make the most of PowerShell Core 6.0's powerful automation feature, where you will have different methods available to parse data and manipulate regular expressions and Windows Management Instrumentation (WMI). After having explored automation, you will enter the extending PowerShell Core 6.0 module, covering asynchronous processing and desired state configuration. In the last module, you will learn to extend PowerShell Core 6.0 using advanced scripts and filters, and also debug issues along with working on error handling techniques. By the end of this book, you will be an expert in scripting with PowerShell Core 6.0.
Table of Contents (27 chapters)
Free Chapter
1
Section 1: Exploring PowerShell Fundamentals
6
Section 2: Working with Data
16
Section 3: Automating with PowerShell
19
Section 4: Extending PowerShell

Types

A type is used to represent the generalized functionality of an object. To use this book as an example again, it could have a number of types, including the following:

  • PowerShellBook
  • TextBook
  • Book

Each of these types describes the general functionality of the object. The type doesn't say how this book came to be, nor whether it will do anything (on its own) to help create one.

In PowerShell, types are written between square brackets. The [System.AppDomain] and [System.Management.Automation.PowerShell] statements, used when discussing previous assemblies, are types.

Type descriptions are objects in PowerShell

[System.AppDomain] denotes a type, but the syntax used to denote the type is itself an object. It has properties and methods and a type of its own (RuntimeType), which can be seen by running the following command:
[System.AppDomain].GetType()

To an extent, the...