iw命令连接wifi

1.扫描SSID
# sudo iw dev wlp0s20f3 scan

找到SSID：test

2.配置连接wifi
# wpa_passphrase test 12345678 >> /etc/wpa_supplicant.conf
注释：
SSID：test
密码：12345678
passord保存文件：/etc/wpa_supplicant.conf

//查看
# cat /etc/wpa_supplicant.conf
network={
	ssid="test"
	#psk="12345678"
	psk=11fbec22c8d21dd5e270c5942c75835e54cfc746230d9f0bc765a63372c51b5b
}

3.连接wifi设备
# wpa_supplicant -B -i wlan0 -c /etc/wpa_supplicant.conf

4.查看连接转状态
# iw wlan0 link

5.为wlan0获取ip地址
# sudo dhclient wlan0