VboxHeadless -startvm 'name of quest os' &

VBoxManage startvm "Web_Server" --type headless

VBoxManage startvm "Integra_master" --type headless

VBoxManage startvm "Integra_slave" --type headless

VBoxManage startvm "Integra_node" --type headless

VBoxManage controlvm "Integra" poweroff

VBoxManage controlvm "Integra" reset