Here are two useful commands for you to try to monitor the situation

Check that indi is working
====================
$ ps aux | grep indiserver

You should see a line saying that indiserver is working, it will include the command including indi_weatherradio

Check the output of the logfile
=======================
$ tail -f /tmp/logfilename.txt

nafa@NAFABox:~$ ps aux | grep indiserver
nafa 704 0.0 0.0 1836 1364 ? Ss févr.11 0:14 /usr/bin/indiserver -v indi_weatherradio >> /tmp/weatherradio_output.txt
nafa 736 0.0 0.0 0 0 ? Z févr.11 0:00 [indiserver] <defunct>
nafa 27566 0.0 0.0 4196 548 pts/0 S+ 09:13 0:00 grep --color=auto indiserver
nafa@NAFABox:~$ tail -f /tmp/logfilename.txt
tail: impossible d'ouvrir '/tmp/logfilename.txt' en lecture: Aucun fichier ou dossier de ce type
tail: aucun fichier restant
nafa@NAFABox:~$ tail -f /tmp/weatherradio_output.txt
tail: impossible d'ouvrir '/tmp/weatherradio_output.txt' en lecture: Aucun fichier ou dossier de ce type
tail: aucun fichier restant
nafa@NAFABox:~$

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