routercheck.sh

#!/bin/sh
#Check periodicly if my YouSee supplied Netgear CG3000 router has had another nervous breakdown
#using this script and cron.

#Copyright 2014-2015 Martin Bo Kristensen Grønholdt
#
#Licensed under the Apache License, Version 2.0 (the "License");
#you may not use this file except in compliance with the License.
#You may obtain a copy of the License at
#
#    http://www.apache.org/licenses/LICENSE-2.0
#
#Unless required by applicable law or agreed to in writing, software
#distributed under the License is distributed on an "AS IS" BASIS,
#WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
#See the License for the specific language governing permissions and
#limitations under the License.


#Check router.
ping -c 5 -q 192.168.0.1 > /dev/null

if [ $? -ne 0 ]
then
  echo >> ~/pinglog.log
  echo -n `date` >> ~/pinglog.log
  echo -e " - Router is not answering." >> ~/pinglog.log
else
#Check internet connection by pinging google DNS.
  ping -c 5 -q 8.8.8.8 > /dev/null

  if [ $? -eq 0 ]
  then
    echo -n "." >> ~/pinglog.log
  else
    echo >> ~/pinglog.log
    echo -n `date` >> ~/pinglog.log
    echo -e " - Internet down.\n" >> ~/pinglog.log
  fi
fi

#Check for new day and add newline and date
if [ `date +%H%M` -eq "0000" ]
then
  echo >> ~/pinglog.log
  echo `date` >> ~/pinglog.log
fi
exit 0