Is that possible to remove Nautilus/Gedit/Treminal ?

[LABcqX]

You could run something like

sudo apt-get remove -s nautilus

to see exactly what would be removed. The "-s" means "No action; perform a simulation of events that would occur but do not actually change the system."

How did you learn of this command? I have tried the MAN command but it does not say anything about the -s option.