apt-get clean
#rm -rf /tmp/*
rm -f /etc/ssh/ssh_host*
rm -f /root/.bash_history
rm -f /root/.wget-hsts
rm -rf /root/.cache
rm -rf /root/.config
rm -rf /root/.local
find /var/log/ -type f | xargs rm -f
umount /proc
umount /sys
umount /dev/pts
umount /dev
umount /run
umount /tmp