_docker_killer

#!/bin/bash
if [[ $1 == '-c' ]]
then

    containers_count=$2
    containers_str=$(docker ps -a -n $containers_count | egrep -o --regexp="^\S+" | grep -v CONTAINER)
    images_str=$(docker ps -a -n $containers_count | grep -Po '(?<=^\w{12}\s{3}).+?(?=\s+)')
    # другой вариант найти первое слово: '^(?:\S+)'


    set -f
    containers=(${containers_str/\n})

    for i in "${!containers[@]}"
    do
        echo "\nУдаляю контейнер ${containers[i]}"
        docker stop  "${containers[i]}"
        docker rm  "${containers[i]}"
    done

    set -f
    images=($images_str)

    for i in "${!images[@]}"
    do
        echo "\nУдаляю image ${images[i]}"
        docker rmi -f "${images[i]}"
    done

elif [[ $1 == '-i' ]]
then

    images_count=$2

    images_str=$(docker images | grep -v REPOSITORY |  head -n $images_count | grep -Po '(?<=\s{21})\w+(?=\s{3}\S)')


    set -f
    images=($images_str)

    for i in "${!images[@]}"
    do
        echo "\nУдаляю image ${images[i]}"
        docker rmi -f "${images[i]}"
    done



fi