Book Image

Mastering Windows PowerShell Scripting (Second Edition) - Second Edition

By : Brenton J.W. Blawat
Book Image

Mastering Windows PowerShell Scripting (Second Edition) - Second Edition

By: 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 (24 chapters)
Title Page
Credits
About the Authors
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Type accelerators


A type accelerator is an alias for a type name. At the beginning of this chapter the System.Management.Automation.PowerShell type was used. This type has an accelerator available. The accelerator allows the following notation to be used:

[PowerShell].Assembly

Another commonly used example is the ADSI accelerator. This represents the type System.DirectoryServices.DirectoryEntry. The following two commands are equivalent:

[System.DirectoryServices.DirectoryEntry]"WinNT://$env:COMPUTERNAME" 
[ADSI]"WinNT://$env:COMPUTERNAME"

Getting the list of type accelerators is not quite as easy as it should be. An instance of the TypeAccelerators type is required first. Once that has been retrieved, a static property called Get will retrieve the list; the first few results are shown following:

$type = [PowerShell].Assembly.GetType('System.Management.Automation.TypeAccelerators') 
$type::Get

New accelerators may be added; for example, an accelerator for the TypeAccelerators class would make...