Remove old kernel images in Ubuntu if apt-get autoremove is broken

remove_old_kernel_images.sh

#!/bin/sh

# first check current kernel version
uname -a

# generate list of dpkg commands to remove older kernel versions
for i in `dpkg -l | tail -n +6 | grep -E 'linux-image-[0-9]+' | grep -Fv $(uname -r) | grep ^ii | awk '{print $2}'`; do echo sudo dpkg --purge $i; done

# remove old kernel versions
#for i in `dpkg -l | tail -n +6 | grep -E 'linux-image-[0-9]+' | grep -Fv $(uname -r) | grep ^ii | awk '{print $2}'`; do sudo dpkg --purge $i; done