You're reading from Mastering PowerShell Scripting - Fourth Edition

Product typeBook

Published inJun 2021

PublisherPackt

ISBN-139781800206540

Edition4th Edition

Tools

Windows Server

Concepts

System Administration

Author (1)

Chris Dent

Grouping and measuring

Group-Object is a powerful command that allows you to group objects together based on a property or expression.

Measure-Object supports several simple mathematical operations, such as counting the number of objects, calculating an average, calculating a sum, and so on. Measure-Object also allows characters, words, or lines to be counted in text fields.

The Group-Object command

The Group-Object command shows a group and count for each occurrence of a value in a collection of objects.

Given the sequence of numbers shown, Group-Object creates a Name that holds the value it is grouping, a Count as the number of occurrences of that value, and a Group property as the set of similar values:

PS> 6, 7, 7, 8, 8, 8 | Group-Object
Count    Name                   Group
-----    ----                   -----
    1    6                      {6}
    2    7                      {7, 7}
    3    8                      {8, 8, 8}

The Group property...

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Mastering PowerShell Scripting - Fourth Edition

Published in: Jun 2021Publisher: PacktISBN-13: 9781800206540

Author (1)

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.
Read more about Chris Dent

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Grouping and measuring

The Group-Object command

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