AzureRM - Get Core Usage.ps1

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# Sign-in to Azure via Azure Resource Manager
# Note: Requires minimum of "Reader" RBAC permissions to subscription

    Login-AzureRmAccount

# Select Azure Subscription

    $subscriptionId = 
        ( Get-AzureRmSubscription |
            Out-GridView `
              -Title "Select an Azure Subscription ..." `
              -PassThru
        ).SubscriptionId

    Select-AzureRmSubscription `
        -SubscriptionId $subscriptionId

# Select Azure Region

    $location = 
        ( Get-AzureRmLocation ).Location |
                Out-GridView `
                  -Title "Select an Azure Subscription ..." `
                  -PassThru

# Get Azure VM current usage and quota limits

    Get-AzureRmVmUsage -Location $location