How to install VirtualBox Extension Pack on Linux machines

To see installed Extention Pack

sudo VBoxManage list extpacks

To download

wget http://download.virtualbox.org/virtualbox/4.3.12/Oracle\_VM\_VirtualBox\_Extension\_Pack-4.3.12-93733.vbox-extpack

To install

sudo VBoxManage extpack install Oracle_VM_VirtualBox_Extension_Pack-4.3.12-93733.vbox-extpack

To remove

sudo VBoxManage extpack uninstall "Oracle VM VirtualBox Extension Pack"