If you want to update CouchPotato just execute the following commands in the bash shell:
- sudo /etc/init.d/couchpotato stop
- cd CouchPotatoServer (or cd CouchPotato, whatever folder you installed CouchPotato in).
- git pull
- sudo /etc/init.d/couchpotato start
Even after starting, it might take 60 seconds before your site responds to requests.