Book Image

PowerShell Core for Linux Administrators Cookbook

By : Prashanth Jayaram, Ram Iyer
Book Image

PowerShell Core for Linux Administrators Cookbook

By: Prashanth Jayaram, Ram Iyer

Overview of this book

PowerShell Core, the open source, cross-platform that is based on the open source, cross-platform .NET Core, is not a shell that came out by accident; it was intentionally created to be versatile and easy to learn at the same time. PowerShell Core enables automation on systems ranging from the Raspberry Pi to the cloud. PowerShell Core for Linux Administrators Cookbook uses simple, real-world examples that teach you how to use PowerShell to effectively administer your environment. As you make your way through the book, you will cover interesting recipes on how PowerShell Core can be used to quickly automate complex, repetitive, and time-consuming tasks. In the concluding chapters, you will learn how to develop scripts to automate tasks that involve systems and enterprise management. By the end of this book, you will have learned about the automation capabilities of PowerShell Core, including remote management using OpenSSH, cross-platform enterprise management, working with Docker containers, and managing SQL databases.
Table of Contents (19 chapters)

Removing custom type data

Now that we know how to create and update type data, the next step for us is to learn how to remove the type data. Removing the type data requires us to get the type data first. In this recipe, we will learn about the process of removing type data, whether it was updated using cmdlets or an XML file.

How to do it...

The first step is to understand that a cmdlet can output one or more types of objects. For instance, in our case, Get-ChildItem will output System.IO.DirectoryInfo, as well as System.IO.FileInfo. Let's learn how to work with these:

  1. Get the type of the object returned by the cmdlet:
PS> Get-ChildItem | Get-Member | Select-Object TypeName -Unique
  1. Two types are returned. We created...