diff --git a/README.md b/README.md
index 41b14db..9760166 100644
--- a/README.md
+++ b/README.md
@@ -567,4 +567,60 @@ network:
                 search:
                 - rulingcom.com
     version: 2
+### 六、如果 /etc/init.d/mongod 遺失(適用於ubuntu14.04以上)
+```sh
+# 建立 mongod service
+$ sudo vim /etc/init.d/mongod  #請查看以下/etc/init.d/mongod之內容
+$ sudo chmod +x /etc/init.d/mongod
+```
+```txt
+#此為/etc/init.d/mongod之內容
+#!/bin/bash
+case $1 in 
+start)
+	if [ -f "/var/lib/mongodb/mongod.lock" ]; then
+		exit 0
+	else
+		self_pid=$$
+		pid=`ps aux | grep mongod | grep -v 'service' | grep -v 'grep' | grep -v '/etc/init.d' | awk '{print $2}'`;
+		COUNTER=0
+		for i in $pid
+		do
+			if [ -f "/proc/$i/status" ]; then
+				echo "$i"  >> /var/lib/mongodb/mongod.lock;
+				COUNTER=$((COUNTER+1))
+			fi
+		done
+		if [ $COUNTER == 0 ]; then
+			sudo mongod --config /etc/mongod.conf &
+			exit 0
+		fi
+	fi
+	;;
+stop)
+	if [ -f "/var/lib/mongodb/mongod.lock" ]; then
+		sudo kill -s TERM `cat /var/lib/mongodb/mongod.lock`
+	fi
+	sudo rm -f /var/lib/mongodb/mongod.lock
+	;;
+restart|reload)
+	if [ -f "/var/lib/mongodb/mongod.lock" ]; then
+                sudo kill -s TERM `cat /var/lib/mongodb/mongod.lock`
+        fi
+	sudo rm -f /var/lib/mongodb/mongod.lock 
+	sudo mongod --config /etc/mongod.conf &
+	exit 0
+	;;
+status)
+	if [ -f "/var/lib/mongodb/mongod.lock" ]; then
+		if [ -f "/proc/$(cat /var/lib/mongodb/mongod.lock)/status" ]; then
+			echo "mongo is already running"
+		else
+			echo "mongo is not running"
+		fi
+	else
+		echo "mongo is not running"
+	fi
+esac
+```