Hi all,
Here is a script I use to automatically (re)connect to my wireless network. Anything in angled brackets should be replaced with the value of course:
1. Save the following as /usr/local/bin/checkwireless.sh
Code: #!/bin/bash
echo "Check essid..."
if [ `iwconfig wlan0|grep ESSID|awk -F: '{print $2}'` = "\"<your_ESSID>\"" ]
then
echo "essid has been set"
else
echo "essid has not been set. Setting..."
sleep 1
iwconfig wlan0 key restricted <your-network-pass>
iwconfig wlan0 essid "<your_ESSID>"
sleep 1
echo "done."
fi
# next line assumes you have a 192.168 internal address, hence 168
if [ `ifconfig wlan0|grep 168|wc -l` -eq 1 ]
then
echo "ip address already set. Skipping."
else
echo "ip address for wlan0 not set. Setting manually ..."
ifconfig wlan0 192.168.<your-IP>
sleep 1
route add default gw 192.168.<default-gateway>
echo "done."
fi
if [ `grep name /etc/resolv.conf|wc -l` -eq 1 ]
then
echo "nameserver already set. Skipping"
else
echo "nameserver not set. Setting now"
echo 'nameserver 192.168.<your-nameserver>' > /etc/resolv.conf
fi
To get this working, I added it to root's crontab. As root, type "crontab -e", then add this:
Code: * * * * * /usr/local/bin/checkwireless.sh 1>/var/log/wireless.log
This will check every minute. If your wireless isn't as unreliable as mine, change the first * (minutes) to something like a number between 0 and 59 (hourly, at whatever past) or */4 (etc.) for every 4 minutes, starting on the hour.
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