回帖：journalctl |tail -n 100
https://blog.csdn.net/vingo888/article/details/3291936
https://blog.51cto.com/thinkpig007/1671924
https://www.cnblogs.com/yanshaoxiong/p/16556489.html
nmcli device wifi connect netlan_5G password nb988776655

wpa_passphrase netlan_2G 'nb988776655'

network={
ssid="netlan_2G"
#psk="nb988776655"
psk=36552ba6a938fcfd9213b04ae464a3d30f4f16399a6908192b4ae2f08b0c8514
}

password for '802-11-wireless-security.psk' not given in 'passwd-file' and nmcli cannot ask without '--ask' option.