Fixed AT Terminal state sessions and shedule cell locking bugs.

ipk-source/sdxpinn-quecmanager-beta/root/www/cgi-bin/services/clear_logs.sh

@@ -42,16 +42,33 @@ fi
 # Fix the spacing in the cron line to ensure exactly 5 fields
 CRON_LINE="0 0 * * * $SCRIPT_PATH"
 
-# Install crontab if not already present
+# Install crontab while preserving other entries
 if ! crontab -l | grep -Fq "$SCRIPT_PATH"; then
-    # Get existing crontab - ensuring clean formatting
-    (crontab -l 2>/dev/null | grep -v "$SCRIPT_PATH" || true; echo "$CRON_LINE") | crontab -
-    if [ $? -eq 0 ]; then
+    # Create temporary file
+    TEMP_CRON=$(mktemp)
+    
+    # Get existing crontab
+    crontab -l 2>/dev/null > "$TEMP_CRON" || true
+    
+    # Remove any old instances of this script
+    if [ -s "$TEMP_CRON" ]; then
+        sed -i "\#$SCRIPT_PATH#d" "$TEMP_CRON"
+    fi
+    
+    # Add new cron line
+    echo "$CRON_LINE" >> "$TEMP_CRON"
+    
+    # Install new crontab
+    if crontab "$TEMP_CRON"; then
         logger -t log_cleanup "Successfully installed crontab job"
     else
         logger -t log_cleanup "Failed to install crontab job"
+        rm -f "$TEMP_CRON"
         exit 1
     fi
+    
+    # Clean up
+    rm -f "$TEMP_CRON"
 fi
 
 # Clean log files