Set up a bunch of OpenVPN connections using nmcli with username and password

vpn-setup.sh

#!/usr/bin/env bash

USERNAME="$1"
PASS="$2"

for f in  *.ovpn 
do    
        name=`basename -s .ovpn $f`;
        nmcli connection import type openvpn file $f
        nmcli connection modify "${name}" +vpn.data connection-type=password-tls
        nmcli connection modify "${name}" +vpn.data username="${USERNAME}"
        nmcli connection modify "${name}" +vpn.secrets password="${PASS}"
done

nmcli connection import type openvpn file "$FILENAME"

https://askubuntu.com/a/913122

nmcli connection modify enp3s0 ipv4.never-default true

• change enp3s0 with your own connection name.
• use false or true to toggle between this config.