functions/Get-AzSMEmptyResourceGroups.ps1
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function global:Get-AzSMEmptyResourceGroups { <# .SYNOPSIS Lists empty resource groups in a subscription. .DESCRIPTION Lists empty resource groups in a subscription. .PARAMETER SubscriptionID Azure subscription ID in the format, 00000000-0000-0000-0000-000000000000 .OUTPUTS Microsoft.Azure.Commands.ResourceManager.Cmdlets.SdkModels.PSResourceGroup .EXAMPLE Get-AzSMEmptyResourceGroups -SubscriptionID 00000000-0000-0000-0000-000000000000 Get a list of empty Resource Groups in a subscription with confirmation. .EXAMPLE Get-AzSMEmptyResourceGroups -SubscriptionID 00000000-0000-0000-0000-000000000000 -force Get a list of empty Resource Groups in a subscription without confirmation. .NOTES * CAN be piped to Remove-AzResourceGroup. .LINK #> [CmdletBinding( DefaultParameterSetName='SubscriptionID', ConfirmImpact='Low' )] param( [Parameter(Mandatory=$true)][string] $SubscriptionID ) $null = Set-AzContext -SubscriptionId $SubscriptionID Write-Debug ('Subscription: {0}' -f $SubscriptionID) $emptyrgs = New-Object System.Collections.ArrayList $rgs=Get-AzResourceGroup $rgs|ForEach-Object { $rgd=Get-AzResource -ResourceGroupName $_.ResourceGroupName -WarningAction SilentlyContinue -ErrorAction SilentlyContinue -ErrorVariable $rgerr if (!$rgd -and $null -eq $rgerr) { $null = $emptyrgs.add($_) } } Return $emptyrgs } Export-ModuleMember -Function Get-AzSMEmptyResourceGroups |