This gist contains commands or actions that make some operations extremely handy in Azure.
Go to the Resource Groups view and check all resource groups you want to delete. Click on the Assign Tags button and assign a tag called 'delete' without any value. Now go to the cloud shell withing the azure portal and execute the following command to delete all tagged resource groups:
az group list --tag delete --query [].name -o tsv | xargs -otl az group delete --no-wait -y -n