Clean up dangling / orphan Docker volumes

docker-volume-cleanup.sh

#!/bin/bash

# Because I keep forgetting this command...
DANGLING_VOLUMES=$(docker volume ls -qf dangling=true)
if [ -n "$DANGLING_VOLUMES" ]; then
    echo $'\nRemoving volumes:'
    docker volume rm $DANGLING_VOLUMES
else
    echo $'\nNo dangling volumes to remove.'
fi

echo $'\nDone!'