free up disk-space when done with docker

bash-alias-docker-cleanup.sh

#!/bin/bash
alias dck="echo '-- docker cleanup: kill..' && docker ps -q | xargs docker kill"
alias dcrm="echo '-- docker cleanup: rm..' && docker ps -q | xargs docker rm"
alias dcrmi="echo '-- docker cleanup: rmi..' && docker images -q -f dangling=true | xargs docker rmi"
alias dcrmia="echo '-- docker cleanup: rmia..' && docker images -q | xargs docker rmi"
alias dockercleanup="echo '-- docker cleanup: all..' && dck; dcrm; dcrmi; dcrmia"

# usage, output:
# $ dockercleanup
# -- docker cleanup: all..
# -- docker cleanup: kill..
# -- docker cleanup: rm..
# -- docker cleanup: rmi..
# -- docker cleanup: rmia..