wifi.sh

# An example of enabling WIFI and connecting to WEP/WPA/WPA2 wireless network.

# Here setup your network information.
ESSID=
KEY=

# Enable WLAN.
ifconfig wlan0 up

# Scan wireless networks.
iwlist wlan0 scan

# Connect to specified wireless network.
# For WEP network:
#iwconfig wlan0 essid $ESSID key $KEY
# For WPA/WPA2 network:
wpa_passphrase $ESSID key $KEY > $ESSID.wpa
wpa_supplicant -B -Dwext -iwlan0 -c$ESSID.wpa

# Fetch DHCP information.
dhclient wlan0

# Check if the WIFI is correctly setup.
ifconfig wlan0
ping 114.114.114.114

# Disable WLAN.
#ifconfig wlan0 down