setting default applications

Christoph Wickert christoph.wickert at
Sat Dec 11 19:33:06 CET 2010

Am Samstag, den 11.12.2010, 16:59 +0000 schrieb NW:
> I have just installed truecrypt on my laptop (Mint v 9) and tested it.
> (I have used it before.) I found that, although I could mount the
> truecrypt file I could not open it. It was looking for Nautilus, which
> is a program I have never used and was not installed. So I installed it
> and now it works. 
> This made me  wonder, why is it looking for Nautilus and why can't I
> tell it which program to use.? I know that I can select which are my
> preferred applications but only the browser and the mail client. Is
> there any way to set up other preferences please, such as text editor
> and file manager?

Yes, here is how to do it:

$ grep directory /usr/share/applications/defaults.list 

This means that by default folders are opened with the command that is
specified in 

In order to change that, you would replace that line with 


to change it globally or add that line to 


to change it for you user only. Beware: You need to give it the exact
name of the desktop file that is installed in /usr/share/applications.
In Fedora for example it is fedora-Thunar-folder-handler.desktop.


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