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I am looking for a way to remove all the old kernels but keep 1 just in case. 

dpkg --list | grep linux-image | awk '{ print $2 }' | sort -V | sed -n '/'`uname -r`'/q;p' | xargs sudo apt-get -y purge

This command has worked fairly well but removes all old kernels. Is it possible to leave a spare kernel?

steeldriver
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Cmits
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1 Answers1

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Install byobu utility:

sudo apt install byobu

To remove all of old kernels except two last run:

sudo purge-old-kernels -qy --keep 2
Bob
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