#!/bin/bash
echo -n "SSID: "
read -r ssid
echo -n "Password (if any): "
read -r password
echo -n "Name (for future use): "
read -r name

if [ -n password ]; then
  nmcli dev wifi con "$ssid" password "$password" name "$name"
else
  nmcli dev wifi con "$ssid" name "$name"
fi