xPud is a nice little OS. But it has an issue with hidden ssid’s.
Actually, there is nothing wrong with the OS, it’s all you. No seriously, I mean it. In xPud, you are a super user all the time. That means the normal sudo iwconfig “fails”.
What true linux user runs in super user all the time? Well, you are with xPud.
What linux user radiates their ssid? No one, and with this information you won’t have to either.
So the correct usage of iwconfig for getting connected a hidden ssid is:
iwconfig wlan0 essid “insertnamehere” key “insertpasswordhere”