Opening a graphical program from Terminal

One thing I have had to work out myself as it may seem obvious to many or it may be stated somewhere I've never looked is sudo and gksudo

I've come across errors many times in Terminal such as

IBUS-WARNING

Gtk-WARNING

This I now know is because I was trying to open a programme with a graphical front end from within the Terminal.

I now know if I try to open it as root using the sudo command I need to do it as gksudo. This is to warn the system it is opening a graphical programme which may have other environmental variables it needs to set up which would not be otherwise.


So for example in Terminal and wanting to use gedit (the editing programme) I use from the command line:

$ gksudo gedit

and not

$ sudo gedit