There are times when you need to know what are all the SKUs available in the Azure portal. In order to achieve that, use:

az vm list-skus

In order to view a particular Azure resource group’s location, type in your shell:

az group show --resource-group yourresourcegroup --query location

In order to remove all Azure managed disks that start with the name disk, in your PowerShell session type:

Get-AzDisk -ResourceGroupName yourgroupresource -Name 'disk*' | Remove-AzDisk -Force -Verbose

In order to update a current Azure disk performance SKU, from Standard_LRS to Premium_LRS, for example, type:

az disk update --name yourdiskname --resource-group yourresourcegroup --sku Premium_LRS

In order to be able to delete all Azure managed disks that start with mydisk, for example, you’ll first need to run the Azure Bash shell instead of PowerShell and then type:

az disk list --query "[?starts_with(name,'mydisk')].[name]" | xargs -L1 bash -c 'az disk delete --resource-group yourresourcegroup --name $0 --yes'