fixing labels.txt overwrite durring update

scripts/update_birdnet.sh

@@ -50,6 +50,8 @@ remove_scripts() {
 remove_services
 remove_scripts
 
+# Backup labels.txt
+sudo -u${USER} cp -f ~/BirdNET-Pi/model/labels.txt{,.bak}
 # Stage 2 does a git pull to fetch new things
 sudo -u${USER} git -C ${HOME}/BirdNET-Pi checkout -f
 sudo -u${USER} git -C ${HOME}/BirdNET-Pi pull -f

scripts/update_birdnet2.sh

@@ -7,7 +7,7 @@ my_dir=${HOME}/BirdNET-Pi/scripts
 sudo ${my_dir}/update_services.sh
 
 # Stage 1.5: adding new birdnet.conf entries
-if ! grep FULL_DISK ${birdnet_conf};then
+if ! grep FULL_DISK ${birdnet_conf} &> /dev/null;then
  cat << EOF >> ${birdnet_conf}
 
 ## FULL_DISK can be set to configure how the system reacts to a full disk
@@ -18,6 +18,9 @@ FULL_DISK=purge
 EOF
 fi
 
+# Replace Backup labels.txt
+sudo -u${USER} cp -f ~/BirdNET-Pi/model/labels.txt.bak ~/BirdNET-Pi/model/labels.txt
+
 # Stage 2 restarts the services
 newservices=($(awk '/systemctl/ && !/php/ && !/caddy/ && !/target/ {print $3}' <(sed -e 's/--now//g' ${my_dir}/update_services.sh) | sort | uniq ))
 for i in ${newservices[@]};do