Background Back when I got my GL-AR150 mini router, I was blown away by the powerful capabilities of this $25 OpenWRT router,...
Starting and stopping Virtualbox machines with a shell / batch scriptStanislav Khromov
VBoxHeadless --startvm "CentOS Dev"
VBoxManage controlvm "CentOS Dev" acpipowerbutton
For stopping machines properly, you need to isntall apcid on the guest machines.