functions/Get-AzSMUnusedNSGs.ps1
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function global:Get-AzSMUnusedNSGs { <# .SYNOPSIS Lists unused NSGs in a subscription. .DESCRIPTION Lists unused NSGs in a subscription. .PARAMETER SubscriptionID Azure subscription ID in the format, 00000000-0000-0000-0000-000000000000 .OUTPUTS Microsoft.Azure.Commands.Network.Models.PSNetworkSecurityGroup .EXAMPLE Get-AzSMUnusedNSGs -Subscription 00000000-0000-0000-0000-000000000000 Get a list of unused network security groups in a subscription. .EXAMPLE Get-AzSMUnusedNSGs -Subscription 00000000-0000-0000-0000-000000000000 | Remove-AzNetworkSecurityGroup Remove unused network security groups in a subscription with confirmation. .EXAMPLE Get-AzSMUnusedNSGs -Subscription 00000000-0000-0000-0000-000000000000 | Remove-AzNetworkSecurityGroup -force Remove unused network security groups in a subscription without confirmation. .NOTES * CAN be piped to Remove-AzNetworkSecurityGroup. * When piping to remove resources, include the -force parameter to supress prompts. .LINK #> [CmdletBinding( DefaultParameterSetName='SubscriptionID', ConfirmImpact='low' )] param( [Parameter(Mandatory=$true)][string] $SubscriptionID ) $null = Set-AzContext -SubscriptionId $SubscriptionID Write-Debug ('Subscription: {0}' -f $SubscriptionID) $nsg=Get-AzNetworkSecurityGroup|Where-Object{!$_.NetworkInterfaces -and !$_.Subnets} Return $nsg } Export-ModuleMember -Function Get-AzSMUnusedNSGs |