sudo su root
configure your wpa_supplicant conf file in /etc/wpa_supplicant/myfile.conf

#home-network
network={
ssid="yourwirelessnetwork"
scan_ssid=1
key_mgmt=WPA-PSK
psk="secret wireless password"
}


To bring down your wireless adapter

/sbin/ifconfig -w1o1 inet 0.0.0.0
/sbin/ifconfig -w1o1 down


To bring up wireless network

/sbin/ifconfig -w1o1 up
iwconfig ssid yourwirelessnetwork
dhclient