I have successfully installed Network UPS Tools addon and integration with my Eaton3S UPS. Thanks for Developers to make that so easy for me.
Now I can follow the critical parameter and create an automation to shut down my unit when needed.
As being just an average Joe I was wondering this command described in documentation:
I must be stupid when trying this with SSH & Web Terminal:
As a result:
Am I totally lost? Where should I try the command? Plese Help …
Anyway this result does not affect to my system. I am happy about that but just as a learning point?
And I am playing with RPI3b+, HassOS 3.13, Supervisor 219, Home Assistant 0.108.8