Thank you, I'll give it a try

I made something similar, but with SMS Servertools3 and had the problem that the sms deamon could not move the text files (for the sms) in the spool directory from "outgoing" to "sent" due owner ship problems. Here is my solution https://www.domoticz.com/forum/viewtopic.php?f=23&t=10251&p=72192 ...

Could you explain your script a little, I would like to adapt it for my meter with 75 revolutions per kWh.
Also I tried to comment out the gas metering but since I have no python experience I totally broke it

thanks in advance

After searching and puzzling found a solution, "sudu -u smsd" calls "tee" as another user (in this case sms deamon user) and writes the file. #!/bin/bash timefile=`date '+%Y_%m_%d_%H_%M_%S'`; timesms=`date '+%H:%M %d/%m'`; echo -e "To: 436XXXXXXXXXXXXX\n\nWAN is not reachable. $timesms" | sudo -u ...

Iam trying to create a text file for processing in SMS server tools but if the the script is fired via a switch in domoticz the created file is owned by "root" and the sms daemon "smsd" cannot acces the file. for those who dont know sms server tools yet, its a sms gateway daemon which is monitoring ...