Bash script that shows a menu to start or stop VMs using Azure cross-platfom CLI

start-stop-azure-vms.sh

#!/bin/bash

    clear
    echo ""
    echo "-----------------------------------"
    echo ""
    echo "WHAT DO YOU WANT TO DO TODAY?"
    echo ""
    echo "1 - Start all the VMs"
    echo "2 - Shutdown all the VMs"
    echo ""
    echo "0 - Exit"
    echo ""
    echo "-----------------------------------"
    echo ""
    echo -n "Enter selection: "
    read selection
    echo ""
    case $selection in
        1) azure vm list | grep "Stopped" | awk '{system("azure vm start "$2)}' ;;
        2) azure vm list | grep "ReadyRole" | awk '{system("azure vm shutdown "$2)}' ;;
        0) exit ;;
        *) echo "Please enter 1, 2, or 0"
    esac
done