usr/bin/watchdog

@@ -1,22 +1,46 @@
 #!/bin/bash
+
+# Log file
+log_file="/var/log/watchdog.log"
+
+# Extract watchdog IP addresses
 watchdog=$(sudo cat /var/lib/dhcp/* | grep -a "option watchdog" | tail -1 | \
 awk '{for (i=3; i<=NF; i++) printf "%s ", $i}' | tr -d '";')
 IFS=' ' read -r -a ip_array <<< "$watchdog"
+
+# Configuration file
 config_file="/etc/watchdog.conf"
-sudo cp "$config_file" "$config_file.bak"
+
+# Backup current configuration
+if sudo cp "$config_file" "$config_file.bak"; then
+    echo "Backup of $config_file created successfully." >> "$log_file"
+else
+    echo "Failed to create backup of $config_file." >> "$log_file"
+fi
+
+# Clean existing configurations
 sudo sed -i '/ping/d' "$config_file"
 sudo sed -i '/^interval/d' "$config_file"
+
+# Set interval
 echo "interval = 60" | sudo tee -a "$config_file" > /dev/null
+
 if [ ${#ip_array[@]} -eq 0 ]; then
-    sudo sed -i '/interval/d' "$config_file"
+    echo "No IP addresses found. Watchdog configuration cleared." >> "$log_file"
-    echo "No IP addresses found. Watchdog configuration cleared." >> /var/log/watchdog 2>&1
     sudo systemctl stop watchdog
 else
     for ip in "${ip_array[@]}"; do
         echo "ping = $ip" | sudo tee -a "$config_file" > /dev/null
     done
+    echo "Configured watchdog to ping: ${ip_array[*]}" >> "$log_file"
+fi
+
+# Restart watchdog service
+if sudo systemctl restart watchdog; then
+    echo "Watchdog service restarted successfully." >> "$log_file"
+else
+    echo "Failed to restart watchdog service." >> "$log_file"
 fi
-sudo systemctl restart watchdog >> /var/log/watchdog 2>&1
 
 #  Version 1.1:
-#  Created 2024 by Tim Eertmoed @ WiS IT-Solutions GmbH, Germany to work on Raspian as custom pxe init script.
+#  Created 2024 by Tim Eertmoed @ WiS IT-Solutions GmbH, Germany to work on Raspian as custom pxe init script.