Wireless script

[/carlito]

Hi everyone,

Since i was having troubles using the gui configurations tools in edgy to connect to wireless networks, and since i've always looked for an excuse to practice my scripting skills, i've decided to write a small script to help me setup my connection.

In my opinion there are still many things that could be improved in this script, so for that i call on you! Please advise me on how i could improve this script and how i can keep the code cleaner.


This script is the very first one i've ever written, so please be gentle.


#!/bin/bash

INTERFACE=ra0
ROOT_UID=0 # Only users with $UID 0 have root privileges.
E_NOTROOT=67 # Non-root exit error.

if [ "$UID" -ne "$ROOT_UID" ]
then
echo "Run this script as root!"
exit $E_NOTROOT
fi

echo
echo " **************************************"
echo " *** Scanning for Wireless Networks ***"
echo " **************************************"
echo
iwlist $INTERFACE scan
echo

OPTIONS="Rescan Connect Info Test End"
select opt in $OPTIONS; do
if [ "$opt" = "Connect" ]; then
echo "Which network would you like to connect to?"
read NW
echo "Please enter the encription code for $NW. (ASCII)"
read PW
echo "What security mode yould you like to use fo $NW? (open/restricted/off)"
read ENC
iwconfig $INTERFACE essid $NW key s:$PW enc $ENC
dhclient $INTERFACE
iwconfig $INTERFACE
ifconfig $INTERFACE
ping -I $INTERFACE -c 4 google.be
echo "Done!"
exit
elif [ "$opt" = "Rescan" ]; then
echo
echo " ***************************"
echo " *** Rescanning Networks ***"
echo " ***************************"
echo
iwlist $INTERFACE scan
elif [ "$opt" = "Info" ]; then
echo
iwconfig $INTERFACE
ifconfig $INTERFACE
echo
elif [ "$opt" = "End" ]; then
echo
echo " Done!"
exit
elif [ "$opt" = "Test" ]; then
ping -I $INTERFACE -c 4 google.be
else
echo "1) Rescan"
echo "2) Connect"
echo "3) Info"
echo "4) Test"
echo "5) End"
fi
done