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mosquitto_sub in bash script [message #1797160]

Fri, 26 October 2018 13:16

J Z

Messages: 3
Registered: October 2018

Junior Member

I'm looking for a way to call mosquitto_sub as a one-shot-application in a bash script. Everytime I call mosquitto_sub within a bash script, mosquitto_sub is running and blocks the rest. So I want to get only one special information from mosquitto for example:

mosquitto_sub -h my.broker.ip -t stat/device/power/#

and write the result (ON or OFF) to a variable. With other words I only want to fetch the information and then let the rest of the script work. Is there a way to get particular topic values without running mosquitto_sub as a monitor?
Joerg

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