PROBLEM: I like Nautilus because of it is easy to use options. But, Xubuntu comes with Thunar file manager. Not bad but not as good as Nautilus. So how do you make Nautilities your default file manager?
SOLUTION: Thanks to this page I found the solution. Do these steps…
1) Install Nautilus
2) Install the package exo-utils.
3) Then press Alt+F2 and run the command “exo-preferred-applications”.
4) In Preferred Applications, click on the Utilities tab, and under File Manager, select Nautilus.