Fancy docker command to clean up unused Image or container

docker-delete

#!/bin/bash

function delete_container_exited(){
    docker rm -v $(docker ps -a -q -f status=exited)
}

function delete_container_all(){
    docker rm -v $(docker ps -a -q)
}

function delete_images_dangling(){
    docker rmi $(docker images -f "dangling=true" -q)
}

function delete_images_none(){
    docker rmi $(docker images | grep '^<none>' | awk '{print $3}')
}

function delete_volumes_orphaned(){
    docker run -v /var/run/docker.sock:/var/run/docker.sock -v /var/lib/docker:/var/lib/docker --rm martin/docker-cleanup-volumes "$@"
}

case $1 in
    container)
        delete_container_exited
    ;;
    container_all)
        delete_container_all
    ;;
    images)
        delete_images_none
    ;;
    images_dangling)
        delete_images_dangling
    ;;
    volumes)
        delete_volumes_orphaned
    ;;
    *)
        echo "Usage: $0 [container|container_all|images|images_dangling|volumes]"
        exit 2
    ;;
esac