I created a file in /etc/init/wiki.conf to start up my wiki from a shell script on my Raspberry PI Model B:
# tw5nginx.conf
description "Nginx Tiddlywiki5 Wiki"
author "Me"
start on started networking
stop on shutdown
console log
script
mkdir -p /home/pi/tw5/nginx
cd /home/pi/tw5/nginx
/home/runNginxWiki.sh
end script
respawn
I believe the script has failed to run, as my nginx proxy server doesn't see the wiki; but I don't know where the errors of the upstart script go.