diff --git a/restart.sh b/restart.sh
old mode 100644
new mode 100755
index 5466c5f..84f9343
--- a/restart.sh
+++ b/restart.sh
@@ -1 +1,9 @@
-nohup python bin/kefu_robot.py >> bin/kefu_robot.out 2>&1 &
+#!/bin/bash
+
+ps -ef|grep python|grep kefu_robot|grep -v grep
+if [ $? -eq 0 ]; then
+    ps -ef|grep python|grep kefu_robot|grep -v grep|awk '{print $2}'|xargs kill -9
+fi
+
+cd bin
+nohup python kefu_robot.py >> kefu_robot.out 2>&1 &