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

Constructors


The class System.Text.StringBuilder can be used to build complex strings. The StringBuilder class has a number of constructors which can be viewed on the MSDN class library, as shown in the following screenshot:

PowerShell is also able to show the list of constructors. However, PowerShell cannot show the descriptive text. This may be useful as a reminder if the general functionality is already known. In PowerShell 5.0, the following syntax may be used to list the constructors:

PS> [System.Text.StringBuilder]::new
OverloadDefinitions
-------------------
System.Text.StringBuilder new()
System.Text.StringBuilder new(int capacity)
System.Text.StringBuilder new(string value)
System.Text.StringBuilder new(string value, int capacity)
System.Text.StringBuilder new(string value, int startIndex, int length, int capacity)
System.Text.StringBuilder new(int capacity, int maxCapacity)

For older versions of PowerShell, a longer, less descriptive alternative is available:

PS> [System.Text...