I try to upgrade but the script fails.
I do run the script in sudo.

Thanks in advance!

error:
rm -f trc-updater; curl -0 rm -f tr https://raw.githubusercontent.com/terracoin/terracoin/v0.12.2.x/trc-updater; sudo bash trc-updater
curl: Remote file name has no length!
curl: try 'curl --help' or 'curl --manual' for more information
curl: (6) Could not resolve host: tr