ifconfig -a
wlx085700aff981 Link encap:Ethernet HWaddr 08:57:00:af:f9:81
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
vim /etc/network/interfaces
auto wlx085700aff981
iface wlx085700aff981 inet static
address 192.168.1.201
netmask 255.255.255.0
gateway 192.168.1.1
dns-nameservers 114.114.114.114
wpa-conf /etc/wpa.conf
ifup wlx085700aff981
RTNETLINK answers: File exists
Failed to bring up wlx085700aff981.
ip addr flush dev wlx085700aff981
ifup wlx085700aff981