raspberry pi - Autorun a script in the background at boot and suppress output if all goes well -


i'm using raspbian on pi , have script control home automation stuff.

the script designed continuous loop monitoring serial port , sending requests , logging events goes.

by default prints output , polling symbol every 10 seconds (to let know it's running). want keep feature, if run in background, don't want know (unless there's error).

if try , start script >nul still outputs screen.

also, have script starting in /etc/rc.local in background, how can determine if started without error if starts in background?

i use screen kind of process launching

screen -d -m -s asd top

when there problem can attach screen by:

screen -r -x -s asd

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