wifit - an iwconfig tool

Published on Feb. 8, 2007, 3:09 p.m.

linux networking wifi

I've recently installed Mepis Linux on a couple of laptops (a Compaq Presario 2195US and a Dell Latitude D610, both of which use NdisWrapper for wifi drivers).I'm fairly mobile, so I needed a way to quickly change my wireless settings. I wrote this simple bash script to let me do that, and I thought I'd just share it.


## wifit - the wifi tool
## This is a script that accepts a wifi-enabled interface,
## essid, and an optional ascii key for a wifi network connection

if [ $# -lt 2 ] || [ $# -gt 3 ] ; then
echo "wifit - the wifi tool"
echo "-------------------------------------------------"
echo "Usage: wifit [Optional: ]"
echo " Example: wifit wlan0 somenet "
echo " Example: wifit wlan0 somenet mypassword "
echo "-------------------------------------------------"
echo "Setting up wifi connection for "
echo "Interface $1, ESSID: $2..."

iwconfig $1 essid $2
iwlist $1 scan
iwconfig $1 mode Managed
if [ -n $3 ] ; then
iwconfig $1 key restricted s:$3
iwconfig $1 key open
iwconfig ap any
iwconfig commit

To use this, just copy and paste the code above into a file named wifit (or wifit.sh, or whatever you want). You'll then need to make that file executable using chmod:
chmod a+x wifit.sh
Then, simply call the script (possibly using sudo) passing it any arguments you need:
sudo ./wifit wlan0 somenetwork

Alternatively, you could place this file in your /usr/local/bin or /usr/bin directories so that it would be included in your PATH. If you find this useful, or if you decide to add to is, feel free to Contact Me!

comments powered by Disqus