vm-shutdown.sh

function vm-shutdown() {                                                                                                                                                                                                   
  echo 'Shutdown running VM(s)';                                                                                                                                                                                    
                                                                                                                                                                                                                    
  # Get a list of VMs that are running and put them into array                                                                                                                                                      
  vms=($(/usr/local/bin/VBoxManage list runningvms | awk '{print $1}' | tr -d '"'))                                                                                                                                 
                                                                                                                                                                                                                    
  for vm in "${vms[@]}"                                                                                                                                                                                              
    do                                                                                                                                                                                                              
    echo "Shutting down $vm ";                                                                                                                                                                                       
    /usr/local/bin/VBoxManage controlvm $vm acpipowerbutton                                                                                                                                                          
  done                                                                                                                                                                                                              
                                                                                                                                                                                                                    
  runningvms=$(/usr/local/bin/VBoxManage list runningvms | wc -l | xargs)                                                                                                                                           
                                                                                                                                                                                                                    
  # Visual feedback while waiting for the VMs to shutdown                                                                                                                                                           
  while [ $runningvms -gt 0 ]                                                                                                                                                                                       
    do                                                                                                                                                                                                              
    runningvms=$(/usr/local/bin/VBoxManage list runningvms | wc -l | xargs)                                                                                                                                         
    echo "Shutting down $runningvms VM(s)..."                                                                                                                                                                       
    sleep 2                                                                                                                                                                                                         
  done                                                                                                                                                                                                              
                                                                                                                                                                                                                    
  echo 'VM shutdown complete';                                                                                                                                                                                      
}