sudo du -h --max-depth=1 / | sort -hr
sudo du -h --max-depth=1 /var | sort -hr
sudo du -h --max-depth=1 /var/lib/docker | sort -hr
sudo find /var/lib/docker/containers/ -name "*-json.log" -exec ls -lh {} \; | sort -hr | head -n 20
sudo find /var/lib/docker/containers/ -name "*-json.log" -exec truncate -s 0 {} \;