| apt-get -y autoremove --purge | 
 | apt-get -y clean | 
 |  | 
 | rm -f /usr/sbin/policy-rc.d || true | 
 |  | 
 | echo "cleaning up hostname" | 
 | sed -i "/.*debian-8.*/d" /etc/hosts | 
 |  | 
 | echo "cleaning up guest additions" | 
 | rm -rf VBoxGuestAdditions_*.iso VBoxGuestAdditions_*.iso.? || true | 
 |  | 
 | echo "cleaning up dhcp leases" | 
 | rm -f /var/lib/dhcp/* || true | 
 |  | 
 | echo "cleaning up udev rules" | 
 | rm -f /etc/udev/rules.d/70-persistent-net.rules || true | 
 | rm -rf /dev/.udev/ || true | 
 | rm -f /lib/udev/rules.d/75-persistent-net-generator.rules || true | 
 |  | 
 | echo "cleaning up minion_id for salt" | 
 | rm -f /etc/salt/minion_id || true | 
 |  |