Find the UUID of your network interface or connection

Today I was looking at the /etc/sysconfig/network-scripts/ifcfg-enp0s3 file and I came across the line that says UUID. I was thinking what is UUID of a network interface? Then I started thinking about how to find UUIDs of network interfcaes. I looked on the internet but I got no solution. Then I thought of trying to find it myself using network management commands. I did find a solution.

To find the UUIDs of your network connection, run the following command.

nmcli connection show

NAME                UUID                                  TYPE            DEVICE 
virbr0              4e02750f-13d9-4662-bfc2-10f9ae1a71bd  bridge          virbr0 
Wired connection 1  09066de3-7eb7-4ee1-9059-c651b6dff7a6  802-3-ethernet  --     
enp0s3              5144084b-0537-4e4b-9f15-065431bc6d38  802-3-ethernet  --  

From the output of this command, you can find the UUID of a connection on CentOS, Fedora, RedHat(RHEL), Ubuntu, Debian operating systems.

Tested on: CentOS 7, Ubuntu 16.04 LTS