attach: screen -x
ultimate attach: screen -dRR
Attaches to a screen session. If the session is attached elsewhere, detaches that other display. If no session exists, creates one. If multiple sessions exist, uses the first one.
prune-storage.js
if you want to do this in a docker install cd to the dir with your docker-compose.yml then:
docker-compose exec -u peertube peertube npm run prune-storage