Aggressive Wifi-reconnect script

setup-reconnect.sh

#!/bin/bash
cd "$(dirname "$0")"
# Set up 3g usb dongle ZTE WCDMA Technologies MSM MF110

if [ "$EUID" -ne 0 ]; then
	echo "Please run this script as root"; exit 1;
fi

# Create script in /opt/
mkdir -p /opt/wifi/

cat <<< '#!/bin/bash
if ! ping -c1 8.8.8.8; then
  ifdown --force wlan0 &&
  ifup --force wlan0 &&
  echo Wifi reset on: `date` 
else
  echo Wifi is up: `date`
fi
' >/opt/wifi/wifi.sh

chmod +x /opt/wifi/wifi.sh

# Create entry in crontab to run script
crontab -l > mycron
echo "* * * * * bash /opt/tunnel/wifi.sh > /var/log/wifi.log 2>&1" >> mycron
crontab mycron
rm mycron