Chris Dent - Mastering PowerShell Scripting: Automate and manage your environment using PowerShell 7.1, 4th Edition
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- Book:Mastering PowerShell Scripting: Automate and manage your environment using PowerShell 7.1, 4th Edition
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Grasp advanced PowerShell 7.1 functionalities for effective automation of your environment
Key Features- Automate complex tasks, manipulate data, and secure your environment
- Work with dual code for PowerShell 7 and Windows PowerShell to maintain compatibility with older versions
- See PowerShell in action, from learning the fundamentals to creating classes, scripts, and modules
PowerShell scripts offer a convenient way to automate various tasks, although working effectively with these scripts can be challenging. Mastering PowerShell Scripting helps you to navigate through PowerShells 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 PowerShells automation features, using different methods to parse data, manipulate regular expressions, and work with Windows Management Instrumentation (WMI).
What you will learn- Optimize code with functions, switches, and looping structures
- Test and debug your scripts as well as raising and catching errors
- Work with objects and operators to test and manipulate data
- Parse and manipulate different data types
- Use jobs, runspaces, and runspace pools to run code asynchronously
- Write .NET classes with ease within PowerShell
- Create and implement regular expressions in PowerShell scripts
- Make use of advanced techniques to define and restrict the behavior of parameters
This book is for system administrators who want to automate and speed up their processes using PowerShell and Windows PowerShell. Some familiarity with operating systems would be useful, but not essential.
Table of Contents- Introduction to PowerShell
- Modules and Snap-Ins
- Working with Objects in PowerShell
- Operators
- Variables, Arrays, and Hashtables
- Conditional Statements and Loops
- Working with .NET
- Strings, Numbers, and Dates
- Regular Expressions
- Files, Folders, and the Registry
- Windows Management Instrumentation
- Working with HTML, XML, and JSON
- Web Requests and Web Services
- Remoting and Remote Management
- Asynchronous Processing
- Graphical User Interfaces
- Scripts, Functions, and Script Blocks
- Parameters, Validation, and Dynamic Parameters
- Classes and Enumerations
- Building Modules
- Testing
- Error Handling
- Debugging and Troubleshooting
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Mastering PowerShell Scripting
Fourth Edition
Automate and manage your environment using PowerShell 7.1
Chris Dent
BIRMINGHAMMUMBAI
Mastering PowerShell Scripting
Fourth Edition
Copyright 2021 Packt Publishing
All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews.
Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing or its dealers and distributors, will be held liable for any damages caused or alleged to have been caused directly or indirectly by this book.
Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information.
Producer: Tushar Gupta
Acquisition Editor Peer Reviews: Divya Mudaliar
Project Editor: Janice Gonsalves
Content Development Editor: Bhavesh Amin
Copy Editor: Safis Editing
Technical Editor: Aniket Shetty
Proofreader: Safis Editing
Indexer: Rekha Nair
Presentation Designer: Pranit Padwal
First published: April 2015
Second edition: October 2017
Third edition: February 2019
Fourth edition: June 2021
Production reference: 1220621
Published by Packt Publishing Ltd.
Livery Place
35 Livery Street
Birmingham
B3 2PB, UK.
ISBN 978-1-80020-654-0
www.packt.com
Chris Dent is an automation specialist with a deep interest in the PowerShell language. Chris has been learning and using PowerShell since 2007 and is often found answering questions in the Virtual PowerShell User Group.
My thanks, as always, go to my wife and kids. Writing a book is an involved project, and this book would not be possible without their forbearance.
Thomas Lee is a consultant/trainer/writer from England and has been in the IT business since the late 1960s. He has worked for a variety of firms, including ICL, Accenture, Microsoft, Global Knowledge, and QA. He has authored and contributed to numerous books on PowerShell, TCP/IP, Windows, and Windows Server. Thomas holds numerous Microsoft certifications, was an active MCT (for 26 years), and has been awarded Microsoft's MVP award 17 times. He was also a Fellow of the British Computer Society. He has written extensively for the UK trade press, including PC Pro.
Having traveled the world extensively, he entered semi-retirement in 2016 and is spending more time at his cottage in the English countryside, along with his wife, Susan, and their daughter, Rebecca. He continues to write/edit books and articles as well as give back to the community. He is a group administrator for the PowerShell forum on Spiceworks, where he is also a site moderator. He is also an administrator and contributor to the Microsoft PowerShell Community blog.
Mike Roberts is a seasoned IT ninja with experience in automation and tool making.
He maintains https://gngr.ninja to help people get started with and answer questions about PowerShell (as well as C#/.NET).
I would like to thank my family and Holly for their support and encouragement.
PowerShell is an object-oriented scripting language aimed at Systems Administrators that was invented by Jeffrey Snover. PowerShell was first conceived as far back as 2002 and entered mainstream use in 2006. Exchange 2007 was one of the first major systems to adopt it as an administration language.
PowerShell has come a long way over the years. PowerShell 7 smooths over a lot of the rough edges in the original releases of the cross-platform PowerShell Core (PowerShell 6).
Like any good scripting language, PowerShell is the glue that ties automated processes together. It is a vital part of the Microsoft ecosystem and is great in heterogeneous environments.
This book is for PowerShell developers, system administrators, and script authors, new and old, who wish to explore the capabilities and possibilities of the language.
Chapter 1, Introduction to PowerShell, introduces you to editors, the help system, command naming, and more.
Chapter 2, Modules and Snap-Ins, explores finding, installing, and using modules in PowerShell. Snap-ins are not part of PowerShell 7 but are briefly explored as a legacy feature of PowerShell 5.
Chapter 3, Working with Objects in PowerShell, looks at the concept of objects in PowerShell and the generic commands available for selecting, filtering, and manipulating values.
Chapter 4, Operators, explores the large variety of operators available in PowerShell.
Chapter 5, Variables, Arrays, and Hashtables are an important topic in PowerShell. The chapter explores the use of variables, as well as the capabilities of collections.
Chapter 6, Conditional Statements and Loops are the tools used to make decisions in scripts in PowerShell. This chapter explores keywords like If, and the different loop styles available.
Chapter 7, Working with .NET, is used to dive into .NET, which was used to create the PowerShell language and is available within PowerShell.
Chapter 8, Strings, Numbers, and Dates are a vital part of any scripting language, and PowerShell is no exception. This chapter explores the different techniques available for working with such values.
Chapter 9, Regular Expressions are an incredibly useful inclusion in PowerShell. You can use regular expressions to make short work of string parsing tasks. The chapter ends by walking through several practical parsing examples.
Chapter 10, File, Folders, and the Registry, explores the use of providers in PowerShell, most used to access the file system and, in Windows, the registry.
Chapter 11, Windows Management Instrumentation, explores WMI in PowerShell, a significant part of the Windows operating system since Windows NT.
Chapter 12, Working with HTML, XML, and JSON, looks at the PowerShell commands and .NET types that you can use to work with these different text-based formats.
Chapter 13, Web Requests and Web Services, explores basic web requests before diving into using PowerShell to work with REST APIs, using the API for GitHub as an example. Support for SOAP in PowerShell 7 is less complete than in PowerShell 5.1. SOAP is explored by way of a web service project via Visual Studio.
Chapter 14, Remoting and Remote Management, examines the configuration and use of PowerShell Remoting in both Windows and Linux.
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