$subscription = 'Visual Studio Ultimate with MSDN'
$username = "powershell@tenant.onmicrosoft.com"
$password = "Password"

### Log into Azure with an organisational account
$secpasswd = ConvertTo-SecureString $password -AsPlainText -Force
$Cred = New-Object System.Management.Automation.PSCredential ($username, $secpasswd)
Login-AzureRmAccount -Credential $Cred

#Choose subscription
Select-AzureRmSubscription -SubscriptionName $subscription

###############################################################################################################

# Sequentially start Azure VMs
Get-AzureRmVM | where {$_.Name -match 'playlist'}| %{
    echo $_.Name

    $scriptBlock = {
        param($Arg0, $Arg1, $Arg2, $Arg3, $Arg4)

        ### Log into Azure with an organisational account
        $secpasswd = ConvertTo-SecureString $Arg3 -AsPlainText -Force
        $Cred = New-Object System.Management.Automation.PSCredential ($Arg2, $secpasswd)
        Login-AzureRmAccount -Credential $Cred

        #Choose subscription
        Select-AzureRmSubscription -SubscriptionName $Arg4

        Start-AzureRmVM -Name $Arg0 -ResourceGroupName $Arg1
    }

    Start-Job $scriptBlock -ArgumentList @($_.Name, $_.ResourceGroupName, $username, $password, $subscription)
}

# Wait for it all to complete
While (Get-Job -State "Running")
{
    Start-Sleep 10
    echo '---------------------------'
    Get-Job
    Get-Job | Receive-Job
}

Remove-Job *

###############################################################################################################

# Sequentially stop Azure VMs
Get-AzureRmVM | where {$_.Name -match 'playlist'}| %{
    echo $_.Name

    $scriptBlock = {
        param($Arg0, $Arg1, $Arg2, $Arg3, $Arg4)

        ### Log into Azure with an organisational account
        $secpasswd = ConvertTo-SecureString $Arg3 -AsPlainText -Force
        $Cred = New-Object System.Management.Automation.PSCredential ($Arg2, $secpasswd)
        Login-AzureRmAccount -Credential $Cred

        #Choose subscription
        Select-AzureRmSubscription -SubscriptionName $Arg4

        Stop-AzureRmVM -Name $Arg0 -ResourceGroupName $Arg1 -Force
    }

    Start-Job $scriptBlock -ArgumentList @($_.Name, $_.ResourceGroupName, $username, $password, $subscription)
}

# Wait for it all to complete
While (Get-Job -State "Running")
{
    Start-Sleep 10
    echo '---------------------------'
    Get-Job
    Get-Job | Receive-Job
}

Remove-Job *