wpa supplicant - Location of wpa_supplicant.conf on Ubuntu 16.04 LTS - Ask Ubuntu

for reason unable locate wpa_supplicant.conf file on ubuntu pc. using ubuntu 16.04 lts. did run find , here's result:

~$ sudo find / -iname wpa_supplicant.conf [sudo] password popo01:  find: ‘/run/user/1000/gvfs’: permission denied /etc/dbus-1/system.d/wpa_supplicant.conf 

the wpa_supplicant.conf located in dbus-1 xml file , looks this:

https://apt-browse.org/browse/ubuntu/trusty/main/i386/wpasupplicant/2.1-0ubuntu1/file/etc/dbus-1/system.d/wpa_supplicant.conf

this doesn't seem right wpa_supplicant.conf file.

without wpa_supplicant.conf, anytime need work wpa_cli establishing p2p connection between peer wifi devices, need kill wpa_supplicant , restart again own p2p.conf file. how make these settings permanent? not want go through process of killing , restarting wpa_supplicant every time boot pc.

man wpa_supplicant tells us:

quick start        first,  make configuration file, e.g.  /etc/wpa_supplicant.conf,        describes       networks          interested    in.     see        wpa_supplicant.conf(5) details. 

by "make configuration file," author meant "create configuration file", , e.g. /etc/wpa_supplicant.conf he/she means "for example, call configuration file created wpa_supplicant.conf".

since there many wifi cards, , many, many wifi network configurations, linux doesn't give default wifi configuration.

read man wpa_supplicant.conf, , create configuration file configuration. feel free call wpa_supplicant.conf (or fred, doesn't matter).