How many are the Desktop environments provided and supported by Ubuntu?
closed as not constructive by Marco Ceppi♦ Nov 18 '11 at 19:35
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Gnome, KDE, LXDE, Xfce and, I think rox. Those are desktop environments. Then you have many window managers and shells that can be used with these DEs. I guess about twenty shells and 5-10 window managers or something.