Every resource I have seen / used always say how to COPY or paste entries into wpa_supplicant.conf.

The question is

Is there a document actually explaining , in "5 W's" style, purpose these entries?

I am enclosing annotated entries in my wpa_supplicant.conf to illustrate my post questions.

This is an original with single network entry:

#default original /etc/wpa_supplicant.conf network={ ssid="mywireless" #psk="secretpassphrase" psk=7b271c9a7c8a6ac07d12403a1f0792d7d92b5957ff8dfd56481ced43ec6a6515 }

#temporary commented out

Now what is the purpose of this ctrl_interface and where did it come from ?

#ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev

What are we updating and when ??


Now for change - this is selfexplanatory #country=US


# ssid="testing" # psk="jim" # }

  • Which 'Software install' menu is that? Can't find it in the latest Raspbian Desktop.
    – Dirk
    Aug 2, 2018 at 9:06

1 Answer 1


On a Raspberry Pi the software release is contained in /etc/os-release. You can get it with:

rpi ~$ cat /etc/os-release

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service and acknowledge you have read our privacy policy.

Not the answer you're looking for? Browse other questions tagged or ask your own question.