https://help.ubuntu.com/community/TransmissionHowTo
stop all: transmission-remote -n 'transmission:mypassword' -S
remote all: transmission-remote -n 'transmission:mypassword' -r -t 3
https://askubuntu.com/questions/221081/permission-denied-when-downloading-with-transmission-daemon
sudo usermod -a -G debian-transmission jethros sudo chgrp debian-transmission /data/downloads sudo chmod 770 /data/downloads
https://forums.sonarr.tv/t/getting-nowhere-with-transmission-setup/3795/3