Microsoft Exchange Server 2016 PowerShell Cookbook - Fourth Edition

How it works...

The first part of a foreach statement is enclosed in parentheses and represents a variable and a collection. In the previous example, the collection is the list of mailboxes returned from the Get-Mailbox cmdlet. The script block contains the commands that will be run for every item in the collection of mailboxes. Inside the script block, the $mailbox object is assigned the value of the current item being processed in the loop. This allows you to access each mailbox one at a time using the $mailbox variable.

When you need to perform loop processing within a pipeline, you can use the ForEach-Object cmdlet. The concept is similar, but the syntax is different because objects in the collection are coming across the pipeline.