sudo VBoxManage startvm Ubuntu_1604 --type headless
sudo vboxmanage controlvm Ubuntu poweroff soft
sudo vboxmanage list -s vms (-s zusammengefasst/ -l detail alle)
Documentation https://www.virtualbox.org/manual/ch08.html
Delete VM http://osxdaily.com/2019/03/19/how-delete-virtual-machine-virtualbox/
Import and Export VM https://askubuntu.com/questions/588426/how-to-export-and-import-virtualbox-vm-images
VBox setup https://websiteforstudents.com/create-virtualbox-guest-machines-on-ubuntu-16-04-lts-server-headless/
sudo vboxmanage modifyvm Panel --cpus 5
sudo vboxmanage modifyvm Panel --bridgeadapter1 enp2s0f0