Alfa AWUS036H optimiser

#!/bin/sh
#
#
# This script was coded to optimise Alfa Wireless card & make it work properly with WICD
#
# Author  : irenicus09
# Date    : 19/08/2013
# License : GPLv3
#
############################################################################################

if [ $# -ne 1 ]
then
    echo "Automated Wireless Optimiser";
    echo "Usage: $0 [interface]";
    exit 1;
fi

interface=$1;

# Change driver as appropriate for your card, default driver for alfa awus036h: rtl8187
driver="rtl8187";

#=============================================================================
echo ""
echo "==================================================================="
echo "\t\tWelcome to Automated Wireless Optimiser";
echo "===================================================================\n"
sleep 1;

echo "[+] Stopping WICD... ";
/etc/init.d/wicd stop 1>/dev/null;
sleep 1;

# Reloading modules from kernel
echo "[+] Reloading modules";
rmmod $driver;
sleep 1;
modprobe $driver;
sleep 1;


echo "[+] Taking down your card offline";
ifconfig $interface down;
sleep 1;


echo "[+] Changing mac-address";
macchanger -r $interface;
sleep 1;

echo "[+] Optimising wireless card for maximum power";
iwconfig $interface mode managed;
iw reg set BO;
iwconfig $interface txpower 30;
sleep 1;

echo "[+] Bringing up wireless card online";
ifconfig $interface up;

echo "[+] Starting WICD... ";
/etc/init.d/wicd start 1>/dev/null;
sleep 1;

echo ""
echo "[+] All patched up and done, have a nice day! ;)";
echo "===================================================================\n"

exit 0;