Docker Commands
1. Remove unused docker containers	# docker rmi $(docker images -q)
2. Restart docker containers		# docker restart $(docker ps -q)
3. Remove unused objects			# docker system prune -a
4. Remove docker containers			# docker container rm $(docker container ls -aq)
5. Stop all containers				# docker container stop $(docker container ls -aq)
6. Remove all containers			# docker container rm $(docker container ls -aq)