#!/bin/bash

[ -z "$1" ] && echo "usage: $0 <essid> [<key>]" && exit 1
if [ -z "$2" ]; then
	KEY="key off"
else
	KEY="key $2"
fi

# IF=ath0
IF=wlan0
ESSID=$1

SUDO=sudo


cmd () {
	echo $*
	$SUDO $*
}


cmd killall dhclient # hack
cmd ifdown $IF
cmd iwconfig $IF mode managed
cmd iwconfig $IF essid "$ESSID"
cmd iwconfig $IF $KEY
# dhclient -d $IF
cmd dhclient $IF