Summary: Use Windows PowerShell to get the name of cmdlets referring to your Azure subscription.
Is there an easy way to obtain the Azure cmdlets referring to my subscription name?
Use the Get-AzureSubscription cmdlet and access the SubscriptionName property:
(Get-AzureSubscription).subscriptionname
If you have multiple subscriptions, you can access them individually:
(Get-AzureSubscription)[0].subscriptionname
(Get-AzureSubscription)[1].subscriptionname