Commands
List
Get a list of all your VirtualBox virtual machines by name and UUID from the shell
VBoxManage list vms
…or to show running machines:
VBoxManage list runningvms
Run
run a VirtualBox virtual machine without a gui
VBoxHeadless -s <name|uuid>
Headless
Running VirtualBox as headless
nohup VBoxHeadless -p 3052 -startvm ServidorProducao &
VBoxManage controlvm ServidorProducao savestate