VBoxManage is a command-line utility that allows you to control all of VirtualBox’s powerful features.Use VBoxManage ,you can make virtualbox guest OS autostart when login host machine,and you can create new virtual machines,change virtual machines’ settings,etc.
If you have installed virtualbox in your system,now you can run following commands in terminal(Applications->Accessories->Terminal):
VBoxManage startvm “WinXP”
this will start the guest “WinXP” if you have this virtual guest in your virtualbox.
You can see your virtualbox version with this command:
and view a list of virtual machines with:
VBoxManage list vms
Create new virtual machine with:
VBoxManage createvm -name "guest_name_here" -register
More about this command,you can tpye this in terminal: