Ubuntu Disk Full Problem

sudo -i
apt-get autoremove --purge
apt-get autoclean
apt-get clean
rm -rf /var/cache/apt/archives/*
find /var/log -name '*.gz' -delete

source: http://askubuntu.com/questions/439814/ubuntu-server-12-10-dev-sda1-disk-full

else

Source: HOWTO: Recover Lost Disk Space