1.ip addr 查看是否连接，也可查看网卡是否启动和网卡名
2.将wifi名和密码写入配置
wpa_passphrase wifi名 wifi密码 >> /etc/wpa_supplicant/wpa_supplicant.conf
3.加载配置文件
wpa_supplicant -i 网卡名 -c /etc/wpa_supplicant/wpa_supplicant.conf -B
4.自动分配ip地址,并检验是否成功分配到ip
dhclient 网卡名
ip addr
wpa_passphrase wifi名 wifi密码 >> /etc/wpa_supplicant/wpa_supplicant.conf
wpa_supplicant -i 网卡名 -c /etc/wpa_supplicant/wpa_supplicant.conf -B
dhclient 网卡名
ip addr