opencpn.conf gets randomly emptied WALKED AROUND

[Didier B]

Higher in this script I wrote : Being a complete newbie in the art of bash/Linux, I am sure these scripts can be condensed, and then improved, maybe merged in a single script which would run automaticaly at startup ?

Well, with little inspiration and a lot of transpiration, its done now and here is the new KeepOCPN_conf_Tidy script :

Code:

# This script tests the opencpn.conf file length. If NOT 0 it will consider
# the file as valid and copy it as the new backup version.
# Else It will restore it with the former backup version.

if [ -s /home/pi/.opencpn/opencpn.conf ]; then cp /home/pi/.opencpn/opencpn.conf /home/pi/Sauvegardes/opencpn.conf;
else
    # Copy corrupted file for forensic investigations
    cp /home/pi/.opencpn/opencpn.conf /home/pi/.opencpn/garbage.ocpn.txt
    # delete corrupted file
    rm -f /home/pi/.opencpn/opencpn.conf
    # restore opencpn.conf using former backup :
    cp /home/pi/Sauvegardes/opencpn.conf /home/pi/.opencpn/opencpn.conf;

fi

What is not addressed is the case where the opencpn.conf file is corrupted AND its length is not ZERO ! But I had dozens of corruptions, and length was always zero !

Still to find how make OP run this script at startup  ! Any suggestion warmly welcomed