Launching a GUI window as root (superuser)

To launch an GUI window as root, we can use the command

gksudo.

for e.g. if we want to open the nautilus file browser as root then we can use the command

gksudo nautilus

This will launch the file browser as the super user or the root.
We can also launch the root terminal i.e. a terminal which always works as the root, and we need not use the sudo command in it.

gksudo gnome-terminal