Table Of ContentPowershell Core 6.2 Cookbook
Leverage command-line shell scripting to effectively manage
your enterprise environment
Jan-Hendrik Peters
BIRMINGHAM - MUMBAI
Powershell Core 6.2 Cookbook
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Contributors
About the author
Jan-Hendrik Peters is an automation and DevOps professional by day, and a developer for
the AutomatedLab framework by night. After working at an international retailer
automating distributed POS support systems, he started working as a premier field
engineer for Microsoft Germany, where he helps customers automate their infrastructure
on-premises and in the cloud.
When he is not working, he likes to spend his time brewing his own beer, curing his own
bacon, and generally doing manual labor.
About the reviewers
Jose Angel Muñoz is a systems engineer with more than 20 years' experience in Linux and
Windows systems administration. He is currently working for RAET, where he has
discovered the magic of automation and infrastructure as code. Jose Angel also collaborates
with Ansible, creating new Python and PowerShell modules.
Previously, he collaborated with the Linux Magazine, where he published several technical
articles on a variety of topics, including monitoring, security, virtualization, and
development.
Friedrich Weinmann, a former Microsoft MVP for his engagement in the PowerShell
community nowadays works as a Premier Field Engineer for Microsoft.
He speaks at international conferences on all things PowerShell, presents at usergroups and
organizes a PowerShell usergroup himself. In his putatively spare time he contributes to
open source projects and can be found hanging out in various PowerShell related
communities.
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Table of Contents
Preface 1
Chapter 1: Introduction to PowerShell Core 8
Technical requirements 9
Installing PowerShell Core on Windows 9
Getting ready 9
How to do it... 9
How it works... 10
There's more... 11
See also 12
Installing PowerShell Core on Linux 12
Getting ready 12
How to do it... 12
How it works... 14
There's more... 14
See also 14
Running PowerShell Core 15
Getting ready 15
How to do it... 15
How it works... 17
There's more... 18
See also 18
Getting help 18
Getting ready 18
How to do it... 18
How it works... 20
There's more... 21
See also 21
Getting around 21
Getting ready 21
How to do it... 22
How it works... 23
There's more... 24
See also 25
How do cmdlets work? 25
Getting ready 25
How to do it... 26
How it works... 26
Performing read-only operations 27
Getting ready 27
Table of Contents
How to do it... 27
How it works... 28
There's more... 28
Introducing change to systems 29
Getting ready 29
How to do it... 29
How it works... 30
There's more... 30
See also 30
Discovering the environment 31
Getting ready 31
How to do it... 31
How it works... 32
There's more... 32
Chapter 2: Reading and Writing Output 33
Technical requirements 33
Working with output 34
Getting ready 34
How to do it... 34
How it works... 35
See also 35
Storing data 36
How to do it... 36
How it works... 37
Read-only and constant variables 38
How to do it... 38
How it works... 38
There's more... 39
Variable scoping 39
How to do it... 39
How it works... 41
There's more... 41
The six streams 41
How to do it... 42
How it works... 43
There's more... 44
Stream redirection 45
How to do it... 45
How it works... 46
Working with the filesystem provider 46
Getting ready 46
How to do it... 46
How it works... 49
Working with the registry provider 50
[ ii ]
Table of Contents
How to do it... 50
How it works... 52
There's more... 52
Working with the certificate provider 53
How to do it... 53
How it works... 55
Creating your own provider 55
How to do it... 55
How it works... 58
There's more... 58
See also 59
NTFS iternate data streams 59
How to do it... 59
How it works... 61
There's more... 62
Chapter 3: Working with Objects 63
Technical requirements 63
Introduction to Object-Oriented Programming 64
Getting ready 64
How to do it... 64
How it works... 66
See also 67
Exploring object properties 67
Getting ready 67
How to do it... 67
How it works... 69
There's more... 70
See also 70
Exploring object methods 71
Getting ready 71
How to do it... 71
How it works... 73
There's more... 74
Using static class members 74
Getting ready 74
How to do it... 75
How it works... 77
There's more... 77
Creating classes 77
Getting ready 77
How to do it... 78
How it works... 80
There's more... 80
See also 80
[ iii ]
Table of Contents
Using custom objects 80
Getting ready 81
How to do it... 81
How it works... 83
See also 83
Manipulating and extending objects 83
Getting ready 83
How to do it... 84
How it works... 86
There's more... 86
See also 87
[ref], [out], and delegates 87
Getting ready 87
How to do it... 87
How it works... 89
See also 89
Chapter 4: Mastering the Pipeline 90
Technical requirements 90
What is a pipeline? 91
Getting ready 91
How to do it... 91
How it works... 94
There's more... 94
See also 94
Sorting data efficiently 95
How to do it... 95
How it works... 97
See also 98
Selecting subsets of data 98
How to do it... 98
How it works... 100
Grouping large data sets 100
Getting ready 100
How to do it... 101
How it works... 103
Filtering data 103
Getting ready 103
How to do it... 104
How it works... 105
Processing data 106
Getting ready 106
How to do it... 106
How it works... 109
Enabling pipeline input 110
[ iv ]
