What is what in MATE and GNOME.

MATE || GNOME = What it is?

Caja || Nautilus = File browser

Pluma || Gedit = Text editor

Eye of MATE || Eye of GNOME = Picture viewer

Atril || Evince = Document viewer

Engrampa || File roller = File extractor

MATE terminal || GNOME Terminal = Terminal emulator

Notice about aptitude

If you don't have aptitude installed, you can get it with

apt-get install aptitude

as root or if you don't want to use it,

alias aptitude=apt-get

Removing GNOME versions.

If you want to remove GNOME versions, just run

aptitude remove nautilus gedit eom evince file-roller gnome-terminal

as root.

Removing MATE versions

If you want to remove MATE versions, just run

aptitude remove caja mate-text-editor eom atril engrampa mate-terminal

as root.

WARNING: You do everything on this page with your own risk.

Sources

MATE applicaltions

Own experience with Linux since 2008.