purge-images.sh

#!/bin/sh
# Remove old images from Ubuntu and clean up /boot and grub.
# 
# Original Source: [Ubuntu Cleanup: How to Remove All Unused Linux Kernel Headers, Images and Modules](http://ubuntugenius.wordpress.com/2011/01/08/ubuntu-cleanup-how-to-remove-all-unused-linux-kernel-headers-images-and-modules/)

dpkg -l 'linux-*' | sed '/^ii/!d;/'"$(uname -r | sed "s/\(.*\)-\([^0-9]\+\)/\1/")"'/d;s/^[^ ]* [^ ]* \([^ ]*\).*/\1/;/[0-9]/!d' | xargs sudo apt-get -y purge