Set Thunar as the default file manager in Gnome

Here's a simple trick for a leaner Gnome desktop -

Install Thunar as the default file manager on Gnome!

1. Install thunar - sudo apt-get install thunar
2. Change the following Exec lines -
3. in /usr/share/applications/nautilus.desktop to Exec=thunar %U
4. in /usr/share/applications/nautilus-folder-handler.desktop to Exec=thunar %U
5. in /usr/share/applications/nautilus-home.desktop to Exec=thunar
   

That's it! Thunar will open automatically instead of Nautilus in most places. Some locations like Computer and Network are "pseudo" locations which can only be opened by Nautilus.