Bash functions for identifying containers by files in root

docker-files.sh

function docker-files {
  docker diff "$1" | cut -d/ -f2,3 | fgrep 'root/' | grep -v 'root/\.' | sed 's_root/__' | uniq
}

function docker-files-all {
  local container_ids=$(docker ps -a | cut -d' ' -f1 | sed -n '1d;p')
  for container_id in $container_ids; do
    echo "$container_id:"
    docker-files "$container_id" | sed 's/^/  /'
  done
}