Book Image

Powershell Core 6.2 Cookbook

By : Jan-Hendrik Peters

Book Image

Powershell Core 6.2 Cookbook

By: Jan-Hendrik Peters

Overview of this book

This book will follow a recipe-based approach and start off with an introduction to the fundamentals of PowerShell, and explaining how to install and run it through simple examples. Next, you will learn how to use PowerShell to access and manipulate data and how to work with different streams as well. You will also explore the object model which will help with regard to PowerShell function deployment. Going forward, you will get familiar with the pipeline in its different use cases. The next set of chapters will deal with the different ways of accessing data in PowerShell. You will also learn to automate various tasks in Windows and Linux using PowerShell Core, as well as explore Windows Server. Later, you will be introduced to Remoting in PowerShell Core and Just Enough Administration concept. The last set of chapters will help you understand the management of a private and public cloud with PowerShell Core. You will also learn how to access web services and explore the high-performance scripting methods. By the end of this book, you will gain the skills to manage complex tasks effectively along with increasing the performance of your environment.

Preface

Who this book is for

What this book covers

To get the most out of this book

Free Chapter

Introduction to PowerShell Core

Introduction to PowerShell Core

Technical requirements

Installing PowerShell Core on Windows

Installing PowerShell Core on Linux

Running PowerShell Core

How do cmdlets work?

Performing read-only operations

Introducing change to systems

Discovering the environment

Reading and Writing Output

Reading and Writing Output

Technical requirements

Working with output

Read-only and constant variables

Variable scoping

The six streams

Stream redirection

Working with the filesystem provider

Working with the registry provider

Working with the certificate provider

Creating your own provider

NTFS iternate data streams

Working with Objects

Working with Objects

Technical requirements

Introduction to Object-Oriented Programming

Exploring object properties

Exploring object methods

Using static class members

Creating classes

Using custom objects

Manipulating and extending objects

[ref], [out], and delegates

Mastering the Pipeline

Mastering the Pipeline

Technical requirements

What is a pipeline?

Sorting data efficiently

Selecting subsets of data

Grouping large data sets

Processing data

Enabling pipeline input

High-performance pipelines

Importing, Using, and Exporting Data

Importing, Using, and Exporting Data

Technical requirements

Working with CSV

Making objects transportable with XML

Modern data structures – JSON and YAML

Interacting with RESTful APIs

Interacting with MS SQL

Interacting with PostgreSQL and other database engines

Encrypting data

Windows and Linux Administration

Windows and Linux Administration

Technical requirements

Enabling a Windows feature

Installing a Linux package group

Creating Windows accounts

Creating Linux accounts

Modifying the Windows Registry

Modifying Linux configuration files

Registering a new Windows service

Enabling a new Linux daemon

Planning a Windows scheduled task

Planning a Linux Cron Job

Creating a Windows storage pool

Creating a Linux software RAID device

Accessing the Windows event log

Working with the system logs in Linux

Windows Server Administration

Windows Server Administration

Technical requirements

File services management

Domain services management

IIS management – deploying and configuring

IIS management – creating a website

Configuring Storage Spaces Direct (S2D)

Using Docker with Hyper-V containers

Remote Desktop Services (RDS) deployment

Integrating DSC configuration into a Windows Server image

Remoting and Just Enough Administration

Remoting and Just Enough Administration

Technical requirements

Enabling PowerShell remoting on Windows

Enabling PowerShell remoting on Linux

Configuring PowerShell remoting

Securely connecting to remote endpoints

Remotely retrieving data

Remote script debugging

Creating a JEA role

Creating a JEA session configuration

Connecting to endpoints using different session configuration

Using the Common Information Model (CIM)

Using PowerShell Direct in PowerShell Core

Using PowerShell for Hyper-V and Azure Stack Management

Using PowerShell for Hyper-V and Azure Stack Management

Technical requirements

Setting up Hyper-V

Setting up Azure Stack

Virtual networks in Hyper-V

Virtual networks in Azure Stack

Provisioning storage in Hyper-V

Provisioning storage in Azure Stack

Provisioning compute resources in Hyper-V

Provisioning compute resources in Azure Stack

Creating a compute cluster with DSC

Configuring guests with DSC on Hyper-V

Configuring guests with DSC on Azure Stack

Using PowerShell with Azure and Google Cloud

Using PowerShell with Azure and Google Cloud

Technical requirements

Connecting to Azure

Connecting to Google

Exploring Azure resource groups

Exploring Google Cloud projects

Deploying resource group templates

Deploying Google Cloud templates

Using the Azure Container Registry

Using the Google Cloud Container Registry

Containers on Azure

Containers on Google Cloud

SQL on Google Cloud

Accessing Web Services

Accessing Web Services

Technical requirements

Exploring REST services

Accessing Azure DevOps via REST

Creating new Azure resource groups via REST

Calling Azure runbooks via webhooks

Providing a RESTful web service through PowerShell

Creating a new team project in Azure DevOps

Creating a new build definition in Azure DevOps

High-Performance Scripting

High-Performance Scripting

Technical requirements

Parallelization with background jobs

Efficiently querying the event log

Comparing Where-Object and the Where method

Using Active Directory cmdlets with performance in mind

Parallelization through runspace pools

Exchanging variables with runspaces

Large-scale IO operations

Hashtables, dictionaries, and performance

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Working with the registry provider

The registry provider is a Windows-only provider that allows access to the local registry of a host. All local hives can be navigated like a filesystem, with the usual provider cmdlets.

How to do it...

Install and start PowerShell Core on Windows and execute the following steps:

Execute the following code to list items in the local machine registry hive:

# Like the filesystem, the local registry hives can be browsed.
# ACLs apply, so AccessDenied errors aren't uncommon
Get-ChildItem HKLM:\SOFTWARE

Since there're no additional filters, you don't have much control over Get-ChildItem, which only returns registry keys and displays their values. Trying to enumerate values this...