1-liner to Remove All Unused Linux Kernel Headers, Images and Modules

Originally published 11th December, 2014

Particularly useful if /boot is filling up:

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