This Script reboot the modem router after verifying if internet connection gone down

Internet_check.sh

#!/bin/bash
# Author: Dame Diongue
# This script checks for an active Internet connection by trying to access
# If check fail, it will reboot the Modem Router

# Trying to access
wget -t 1 -T 10 -o wgetout "http://www.google.sn"
# Wait 5 secondes
sleep 5

httpRequest=`cat wgetout | gawk '/Resolving/{ print $4 }' | tr -d ':'`

if [ "$httpRequest" == "failed" ]
then
  # Restart the modem through cable or wireless connection
  (sleep 3;echo admin;sleep 3;echo admin;sleep 3;echo reboot;sleep 3;) | telnet 192.168.1.1
  # Leave tracks on log file
  # Need to set 777 chmod permission if write in /var/log/
  echo 'Restarting modem router - '`date +%c` >> /var/log/internet_check.log
fi

# Cleaning garbage
rm index.html* wgetout