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Powershell Core 6.2 Cookbook

You're reading from   Powershell Core 6.2 Cookbook Leverage command-line shell scripting to effectively manage your enterprise environment

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Product type Paperback
Published in Apr 2019
Publisher Packt
ISBN-13 9781789803303
Length 372 pages
Edition 1st Edition
Languages
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Author (1):
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Jan-Hendrik Peters Jan-Hendrik Peters
Author Profile Icon Jan-Hendrik Peters
Jan-Hendrik Peters
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Table of Contents (14) Chapters Close

Preface 1. Introduction to PowerShell Core 2. Reading and Writing Output FREE CHAPTER 3. Working with Objects 4. Mastering the Pipeline 5. Importing, Using, and Exporting Data 6. Windows and Linux Administration 7. Windows Server Administration 8. Remoting and Just Enough Administration 9. Using PowerShell for Hyper-V and Azure Stack Management 10. Using PowerShell with Azure and Google Cloud 11. Accessing Web Services 12. High-Performance Scripting 13. Other Books You May Enjoy

Hashtables, dictionaries, and performance

Hashtables and dictionaries are very popular in PowerShell Core. There are many cmdlets that you have already seen, such as Group-Object or Get-WinEvent, which work with hashtables. Hashtables are found when using splatting, and a special dictionary is used for the automatic variable, PSDefaultParameterValues, which defines key-value pairs for cmdlets and their defaults.

This recipe will show you another reason for preferring hashtables over other constructions: speed.

Getting ready

Install and start PowerShell Core. This recipe assumes you are using the ActiveDirectory module, either directly on PACKT-DC1 or imported from it.

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