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Mastering PowerShell Scripting

You're reading from Mastering PowerShell Scripting Automate and manage your environment using PowerShell 7.1

Product type Paperback

Published in Jun 2021

Publisher Packt

ISBN-13 9781800206540

Length 788 pages

Edition 4th Edition

Languages

PowerShell

Tools

PowerShell

Concepts

System Administration

Author (1):

Chris Dent

View More author details

Table of Contents (26) Chapters

Preface

1. Introduction to PowerShell

2. Modules and Snap-Ins FREE CHAPTER

3. Working with Objects in PowerShell

4. Operators

5. Variables, Arrays, and Hashtables

6. Conditional Statements and Loops

7. Working with .NET

8. Strings, Numbers, and Dates

9. Regular Expressions

10. Files, Folders, and the Registry

11. Windows Management Instrumentation

12. Working with HTML, XML, and JSON

13. Web Requests and Web Services

14. Remoting and Remote Management

15. Asynchronous Processing

16. Graphical User Interfaces

17. Scripts, Functions, and Script Blocks

18. Parameters, Validation, and Dynamic Parameters

19. Classes and Enumerations

20. Building Modules

21. Testing

22. Error Handling

23. Debugging and Troubleshooting

24. Other Books You May Enjoy

25. Index

Examples of regular expressions

The following examples walk you through creating regular expressions for several different formats.

MAC addresses

Media Access Control (MAC) is a unique identifier for network interfaces with 6-byte fields normally written in hexadecimal.

ipconfig with the /all switch parameter can show the MAC address of each interface. The address is written in hexadecimal, and each byte is separated by a hyphen, for example, 1a-2b-3c-4d-5f-6d.

On Linux or Unix-based systems, the ip address command shows the hardware (MAC) address for interfaces. Each hexadecimal byte is separated by a :, such as 1a:2b:3c:4d:5f:6d.

A regular expression can be created to simultaneously match these formats. The expression matches the output from the ipconfig /all command on Windows and the ip address command on Linux. In both cases, the MAC address appears after a space at the end of a line.

Considering the preceding formats, the MAC address is made up of...

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Authors (1)

Chris Dent

Chris Dent

Chris Dent is an automation specialist with deep expertise in the PowerShell language. Chris is often found answering questions about PowerShell in both the UK and virtual PowerShell user groups. Chris has been developing in PowerShell since 2007 and has released several modules over the years.

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