RTNETLINK answers: Operation not permitted

Itzak · 2021-03-15 19:40:48

I'm new to bash scripting and I was trying to someone make a simple bash script to connect to wifi using nmcli,

#!/usr/bin/env bash

function connect_wifi() {
ip link set wlo1 up
nmcli dev wifi connect [SSID] password [PASSWORD]
}

connect_wifi

When I execute the script it shows this:

RTNETLINK answers: Operation not permitted

But at the end, the script does connect to my wifi network.

Any idea why this happens? Also, can you tell me if this is a correct way to automate wifi connection? Thanks.

Slithery · 2021-03-15 19:51:57

You're probably trying to set an interface as UP that is already in the UP state.

Itzak wrote:

Also, can you tell me if this is a correct way to automate wifi connection?

No, it isn't.
If you want to use NetworkManager then just use the service files that it already provides.

Itzak · 2021-03-15 20:54:27

Thanks for the reply. Removing the "ip link set wlo1 up" command got rid of the message.

I included that command because I was intending to use the function in a personal script to reinstall arch.

When you say NetworkManager service files, what do you mean? Like the front-end options?

Arch Linux