Wi-Fi restarter

#!/bin/bash

# Which address do you want to ping to see if you can connect
pingip='192.168.1.1'

# Perform the network check and reset if necessary
/bin/ping -c 2 -I wlan0 $pingip > /dev/null 2> /dev/null
if [ $? -ge 1 ] ; then
    echo "Network is DOWN."
    /sbin/ifdown wlan0
    sleep 5
    /sbin/ifup --force wlan0
else
    echo "Network is UP."
fi