Raspberry Pi - 簡易的Wireless Client

將Raspberry Pi的角色，變成Wireless Client
1. 修改/etc/network/interfaces

$ sudo vi /etc/network/interfaces
iface wlan0 inet dhcp
wpa-ssid "HOME-HI"
wpa-psk "aAbBcCdD"

2. 將wireless介面關掉

$ sudo ifdown wlan0

3. 將wireless介面啟動

$ sudo ifup wlan0