sudo apt-get update
sudo apt-get upgrade
sudo rm -rf opt
cd /var/log/
sudo rm `find . -type f`
sudo swapoff --all
sudo update-rc.d -f dphys-swapfile remove
sudo apt-get remove dphys-swapfile
sudo rm /etc/init.d/dphys-swapfile
sudo apt-get update
sudo apt-get upgrade
sudo rm -rf opt
cd /var/log/
sudo rm `find . -type f`
sudo swapoff --all
sudo update-rc.d -f dphys-swapfile remove
sudo apt-get remove dphys-swapfile
sudo rm /etc/init.d/dphys-swapfile