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

System.Xml.Linq

The System.Xml.Linq namespace was added with .NET 3.5. This is known as LINQ to XML. Language Integrated Query (LINQ) is used to describe a query in the same language as the rest of a program. Therefore, interacting with a complex XML document does not require the use of XPath queries.

System.Xml.Linq is loaded by default in PowerShell Core. Windows PowerShell can make use of System.Xml.Linq once the required assembly has been added:

Add-Type -AssemblyName System.Xml.Linq 

This can also be phrased as follows:

using assembly System.Xml.Linq 

As a newer interface, System.Xml.Linq tends to be more consistent. The same syntax is used to create a document from scratch that is used to add elements and so on.

Opening documents

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