gnome-terminal doesn't open after I edited locale file here
/etc/default/locale and I don't have xterm or any other Terminal app installed to see if it runs.
I just need to edit the locale file and everything will be back in order, or in this case delete a custom file that I created in
/usr/share/i18n/locales/en_US_custom using this guide to change the week start day on Ubuntu.
I tired finding ways to get elevated privilege without Terminal -- to no avail.
It's like you can't do anything without a Terminal on linux, I'm stuck, I can't install anything, can't sudo run any app...