#!/bin/bash
# This will purge the kernels we are not using from the system.
# You might want to run apt-get once without the "-y" just to make sure you're
# not going to hose yourself.
# Mario Stargard, Sep 12 2011
# Mario Stargard, Nov 10 2011
#   Actually works now.

DASHY="-y"

# Our running kernel version
# We don't want the full release, just the version number since the release
# will have dependancies on other stuff with the version number.
version=$( uname -r |awk -F- '{ printf("%s-%s\n", $1, $2 )}' )

# Exlude our currently running kernel version
# and remove the remaining linux-image and linux-headers.
dpkg --get-selections "linux-image-[0-9]*" "linux-headers-[0-9]*" |
  awk '{ print $1 }' |egrep -v "${version}\$|${version}-"|
  xargs apt-get $DASHY remove --purge