the empty quarter

Remove old kernels and free up space in /boot partition

October 16th, 2013 | Tags: administration, commandline, sed, ubuntu

This is a great one-liner which removes old kernel images and frees up space in your boot partition:

$sudo apt-get purge $(dpkg -l linux-{image,headers}-"[0-9]*" | awk '/ii/{print $2}' | grep -ve "$(uname -r | sed -r 's/-[a-z]+//')")

1	$sudo apt-get purge $(dpkg -l linux-{image,headers}-"[0-9]*" \| awk '/ii/{print $2}' \| grep -ve "$(uname -r \| sed -r 's/-[a-z]+//')")

This comes from the top answer to a question on ask ubuntu.