DEB - VM sysprep for NW marketplace

#!/bin/sh
#reset network
cat > /etc/network/interfaces << EOL
auto lo
iface lo inet loopback

auto eth0
iface eth0 inet dhcp
EOL
rm -f /etc/network/interfaces.*
#Remove old kernels
dpkg --list | grep linux-image | awk '{ print $2 }' | sort -V | sed -n '/'`uname -r`'/q;p' | xargs sudo apt-get -y purge
#remove root password
passwd -d root
# ssh host keys
rm -f /etc/ssh/*host*key*
# root ssh settings
rm -rf /root/.ssh/
# lvm archive
rm /etc/lvm/archive/*
# logfiles
find /var/log -name "*gz" -exec rm {} +
find /var/log -name "*.1" -exec rm {} +
find /var/log -type f -exec cp /dev/null {} +
apt-get autoremove
rm /var/cache/apt/archives/*deb
# zero fill root device to better compress
dd if=/dev/zero of=/bigzero bs=100M
rm -f /bigzero
history -c
cat /dev/null > /root/.bash_history