Many thank's jmleglise :D Your script code example works great. Now I can combine the temp and humidity values in the same virtual sensor instead of having separate virtual sensors for each one I've had before.

Yes, I used a Temp + Humidity virtual sensor when I tried to get the LUA code to work ...

Can someone please help me understand how I should make a working LUA-script so the temperature and humidity will show up in a virtual sensor?

I’m importing temperature and humidity from a Tellstick Net sensor and store them in a file on my Raspberry Pi, then I want a LUA-script to place these ...