To Ping the Network

ping_test

#!/bin/sh

NUMBER_OF_PING_REQUESTS=4
ROUTER_ADDRESS="192.168.0.1"
SLEEP_TIME=900

while true
do
	PACKETS_RECEIVED=`ping -c $NUMBER_OF_PING_REQUESTS $ROUTER_ADDRESS | grep "received" | awk '{print $4}'`
	if [ $PACKETS_RECEIVED -eq 0 ]
	then
		echo `date`>>Network.txt
		/root/setup/init_wlan
		iwconfig mlan0 key s:cloud
		iwconfig mlan0 key open
		iwconfig mlan0 essid "SENSOR"
		dhclient mlan0
	fi

	sleep $SLEEP_TIME
done