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docker system prune

#!/bin/bash

# remove exited containers:
docker ps --filter status=dead --filter status=exited -aq | xargs -r docker rm -v

# remove unused images:
local images=`docker images --no-trunc`;
local lines=$(echo "$images" | awk '{print $2}' | grep -n "<none>" | cut -d: -f1 | sed 's/$/p/g');
lines=`echo $lines`;
lines=${lines// /;};
local image_ids=$(echo "$images" | awk '{print $3}' | sed -n "$lines");
[[ -n "${image_ids[@]}" ]] && docker rmi ${image_ids[@]}

# remove unused volumes:
find '/var/lib/docker/volumes/' -mindepth 1 -maxdepth 1 -type d | grep -vFf <(
  docker ps -aq | xargs docker inspect | jq -r '.[] | .Mounts | .[] | .Name | select(.)'
) | xargs -r rm -fr

#!/bin/bash

# remove exited containers:
docker ps --filter status=dead --filter status=exited -aq | xargs -r docker rm -v
    
# remove unused images:
docker images --no-trunc | grep '<none>' | awk '{ print $3 }' | xargs -r docker rmi

# remove unused volumes:
find '/var/lib/docker/volumes/' -mindepth 1 -maxdepth 1 -type d | grep -vFf <(
  docker ps -aq | xargs docker inspect | jq -r '.[] | .Mounts | .[] | .Name | select(.)'
) | xargs -r rm -fr