Command for restarting all running docker containers?

docker docker-machine

Just run

docker restart $(docker ps -q)

Update

For Docker 1.13.1 use docker restart $(docker ps -a -q) as in answer lower.

docker docker-machine

For me its now :

docker restart $(docker ps -a -q)

docker docker-machine

If you have docker-compose, all you need to do is:

docker-compose restart

And you get nice print out of the container's name along with its status of the restart (done/error)

Here is the official guide for installing: https://docs.docker.com/compose/install/

CodeHunter