Check network and auto redial

#!/bin/bash

# speed check url

url="https://httpbin.org/bytes/10240"

let i=0

timeout=3

while true

#ping -c 1 114.114.114.114 >/dev/null 2>&1

curl $url --connect-timeout $timeout --speed-limit $((10*1024)) --speed-time 5 -o /dev/null -s -S

if [ $? -ne 0 ];then

let i=i+1

else

let i=0

if [ $i -ge 3 ];then

echo $(date) "re-dialing..."

sudo poff dsl-provider >/dev/null 2>&1

sleep 5

sudo pon dsl-provider >/dev/null 2>&1

let i=0

hour=$(date "+%H")

if [ $hour -ge 19 -a $hour -le 23 ];then

sleep 5

else

sleep 60

done