Where-Object

Selects objects from a collection based on their property values. Note: This command can only be used through PowerShell. More information: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/where-object.

Filter aliases by its name:

Get-Alias | Where-Object -{{Property}} {{Name}} -{{eq}} {{name}}

List all services that are currently stopped. The $_ automatic variable represents each object that is passed to the Where-Object cmdlet:

Get-Service | Where-Object {$_.Status -eq "Stopped"}

Use multiple conditions:

Get-Module -ListAvailable | Where-Object { $_.Name -NotLike "Microsoft*" -And $_.Name -NotLike "PS*" }