Problem scenario
You want to find the subscription ID for your Azure account. What do you do?
Possible Solution #1
Log into the Azure Portal. In the upper right click on your account and then click on "My permissions." You should see an alphanumeric string near your subscription.
Possible Solution #2
Prerequisite
If you have Windows 7 you need to install Azure PowerShell; if you need assistance with this, see this posting. If you have Windows 10, you need to install the modules for Azure; if you need assistance with this, see this posting.
Procedures
Run this PowerShell script:
Login-AzureRmAccount;
$subscriptions= Get-AzureRmSubscription
$totalvar = "The subscription ID is $subscriptions"
echo " "
echo $totalvar
Possible Solution #3
if you are using the Azure CLI, you can run this command to get the subscription ID:
az account show --query "{subscriptionId:id, tenantId:tenantId}"