restart wifi , error in script

[Neddie]

I want to reboot my wireless network when it stops responding. I found this
script , but when I run it I get: line 3: [0: command not found
Any idea what I'm doing wrong?

ping -c4 192.168.1.1 > /dev/null

if [ $? != 0 ]
then
echo "No network connection, restarting wlan0"
/sbin/ifdown 'wlan0'
sleep 5
/sbin/ifup --force 'wlan0'
fi

[DougieLawson]

Try this

Code: Select all

#!/bin/bash

 router="192.168.1.1"
 ip_addr="192.168.1.5/24"

/bin/ping -q -c1 $router > /dev/null

if [ $? -eq  0 ]
then
  : #  echo "Network active"
else
  echo "Network down, fixing..."
  /bin/kill -9 `pidof wpa_supplicant`
  /sbin/ifup --force wlan0
  /sbin/ifconfig "wlan0 $ip_addr"
  /sbin/ip route add default via $router dev wlan0
  cat > /etc/resolv.conf <<resolver
nameserver $router
nameserver 8.8.8.8
search example.co.uk
resolver

fi

[mnmlisme]

stumbled upon this thread when I was looking for a solution.

my problem: using raspberry pi as network monitoring too at a remote location (connected via internet) so I can:
- raspberry pi to check for internet connection, and if there's none, it should restart the modem using telnet (I found a tutorial online that show how to restart a broadband mode with telnet)
- use WOL to start a PC at the remote location
- act as samba server for the other PC to backup files to (CrashPlan)

for the first task, can I use the code you written?

thank you.

[DougieLawson]

If I didn't intend you to use it, I wouldn't have published it on here.

[mnmlisme]

oh that's not what I mean.

I mean, is the code you wrote still fit my need?

where do I input the command to restart my modem (model Zyxel P660HN-T1 v2) or does your code restart any modem (universal)? and I assume I have to replace eth0 if my raspberry pi is connected via cable to the modem?

thanks,

[DougieLawson]

I mean, is the code you wrote still fit my need?

Try it. If it doesn't work, feel free to re-write it.