Simple Script to delete all old kernels except the last recent 2 (after auto-updates) - use with caution

purge_old_kernels.sh

#!/bin/bash

OLD=$(ls -tr /boot/vmlinuz-* | head -n -3 | cut -d- -f2- |
    awk '{print "linux-image-" $0 " linux-headers-" $0}' )

echo "OLD:"
echo "$OLD"
echo
echo -n "CURRENT: "
uname -r
echo "continue?"
read DUMMY

if [ -n "$OLD" ]; then
    apt-get -qy remove --purge $OLD
fi
apt-get -qy autoremove --purge