Wireshark · Wireshark-users: Re: [Wireshark-users] Gtk-WARNING **: cannot open display:

["Robert D." <210525p42015@xxxxxxxxxxxxxx>]

sebb said the following:
>
> What about:
> 
> echo $DISPLAY
> 
> Can you start any X11 applications from the shell?

not sure what applications I _could_ start from the X11 window ... I've
tried, but this is my first experience with X11 actually.

I noted when terminal starts that I see

Last login: Tue Feb 13 11:26:36 on ttyp2
Welcome to Darwin!
export': not a valid identifier
export': not a valid identifier
export': not a valid identifier
export': not a valid identifier
$


if that matters any ...