ShutdownTaggedVMs

    #Set variables
    $Shutdown = $true

    # get automation variables
    $tagName = Get-AutomationVariable -Name 'shutdownResourceTagName'
    $tagValue = Get-AutomationVariable -Name 'shutdownResourceTagValue'

    $Conn = Get-AutomationConnection -Name AzureRunAsConnection
    Add-AzureRMAccount -ServicePrincipal -Tenant $Conn.TenantID `
    -ApplicationId $Conn.ApplicationID -CertificateThumbprint $Conn.CertificateThumbprint

    #Shutdown machines
    $taggedResources = Find-AzureRmResource -TagName $tagName -TagValue $tagValue 

    $targetVms = $taggedResources | Where-Object{$_.ResourceType -eq "Microsoft.Compute/virtualMachines"} | select resourcegroupname, name | Get-AzureRmVM -status

    ForEach ($vm in $targetVms)
    {
        $currentpowerstatus = $vm |select -ExpandProperty Statuses | Where-Object{ $_.Code -match "PowerState" } | select Code, DisplayStatus
 
        if($Shutdown -and $currentpowerstatus.Code -eq "PowerState/running"){
		    Write-Output "Stopping $($vm.Name)";		
		    Stop-AzureRmVm -Name $vm.Name -ResourceGroupName $vm.ResourceGroupName -Force;
	}
	elseif($Shutdown -eq $false -and $currentpowerstatus.Code -ne "PowerState/running"){
		    Write-Output "Starting $($vm.Name)";		
		    Start-AzureRmVm -Name $vm.Name -ResourceGroupName $vm.ResourceGroupName;
	}
        else {
            Write-Output "VM $($vm.Name) is already in desired state : $($currentpowerstatus.DisplayStatus)";
        }
    }