Could use some help with regex

[Josar]

1. Your regex seems not to be the same as as posted from @rlkoshak.

2. I think as your regex is embedded into a string you have to properly escape the backslash.

https://docs.openhab.org/addons/transformations/regex/readme.html#differences-to-plain-regex

3. As it seems that you want to match a multiline string you need something like

"REGEX(s/.+\\s.+(.*)/$1/g)"

Explain in detail in this post.

Openhab2 RPI System Temperature and DS18B20 OneWire Chart with persistence

This tutorial is based on this, this, this and a lot of threads and tutorials i had to read till i got it working. I try to give a step by step Tutorial how to get a temperature chart with OpenHAB2 and the ExecBinding 2 using the RRD4J database for persistency. I will not explain everything in detail, please read this post to get an basic understanding of how OpenHAB works. And use the tutorials and the manual to get deeper insight of how the different parts work. Now to read out the CPU temp…

I did not test it but it should be something like

Number Power { mqtt="<[mosquitto:Electricity/EL/Energy/Import/kWh:state:REGEX((\\d*.\\d*).*)]" }
DateTime Power_Time { mqtt="<[mosquitto:Electricity/EL/Energy/Import/kWh:state:REGEX(s/.*\\s(.*)/$1/g)]" }