cleanup.sh

apt-get clean -y
apt-get autoclean -y

# Remove APT files
find /var/lib/apt -type f -delete

# Remove Virtualbox specific files
rm -rf /usr/src/vboxguest* /usr/src/virtualbox-ose-guest*

# Remove Linux headers
rm -rf /usr/src/linux-headers*

# Delete pip cache
rm -rf /home/vagrant/.cache/pip/*

# Remove Unused locales (edit for your needs, this keeps only en*)
find /usr/share/locale/* -depth -not -wholename '*en*' -delete

# Cleanup log files
find /var/log -type f | while read f; do echo -ne '' > $f; done;

# Whiteout root
count=`df --sync -kP / | tail -n1  | awk -F ' ' '{print $4}'`;
count=$((count -= 1))
dd if=/dev/zero of=/tmp/whitespace bs=1024 count=$count;
rm /tmp/whitespace;

# Whiteout /boot
count=`df --sync -kP /boot | tail -n1 | awk -F ' ' '{print $4}'`;
count=$((count -= 1))
dd if=/dev/zero of=/boot/whitespace bs=1024 count=$count;
rm /boot/whitespace;

# Whiteout swap
swappart=`cat /proc/swaps | tail -n1 | awk -F ' ' '{print $1}'`
swapoff $swappart;
dd if=/dev/zero of=$swappart;
mkswap $swappart;
swapon $swappart;

# Remove bash history
unset HISTFILE
rm -f /root/.bash_history
rm -f /home/vagrant/.bash_history