Reload VirtualBox kexts on OS X 10.9 Mavericks

gistfile1.txt

#!/bin/bash
# Reload Virtual Box Kexts

unload() {
        kextstat | grep "org.virtualbox.kext.VBoxUSB" > /dev/null 2>&1 && sudo kextunload -b org.virtualbox.kext.VBoxUSB
        kextstat | grep "org.virtualbox.kext.VBoxNetFlt" > /dev/null 2>&1 && sudo kextunload -b org.virtualbox.kext.VBoxNetFlt
        kextstat | grep "org.virtualbox.kext.VBoxNetAdp" > /dev/null 2>&1 && sudo kextunload -b org.virtualbox.kext.VBoxNetAdp
        kextstat | grep "org.virtualbox.kext.VBoxDrv" > /dev/null 2>&1 && sudo kextunload -b org.virtualbox.kext.VBoxDrv
}

load() {
        sudo kextload /Library/Extensions/VBoxDrv.kext -r /Library/Extensions/
        sudo kextload /Library/Extensions/VBoxNetFlt.kext -r /Library/Extensions/
        sudo kextload /Library/Extensions/VBoxNetAdp.kext -r /Library/Extensions/
        sudo kextload /Library/Extensions/VBoxUSB.kext -r /Library/Extensions/
}

case "$1" in
        unload|remove)
                unload
                ;;
        load)
                load
                ;;
        *|reload)
                unload
                load
                ;;
esac