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I have many users using a Debian system through thin clients and I'm looking for a way to setup file associations globally for all the XFCE4 desktop environments.
Is there a way to setup the associations for Thunar or another file manager and the xfce desktop icons so that they are all the same accross all users?
To do that system-wide you need to create /usr/share/applications/mimeapps.list as follows
[Default Applications]
application/pdf=evince.desktop
image/png=eog.desktop
Use xdg-mime to find out the mime-type of your files:
xdg-mime query filetype /etc/passwd
You can find available applications with ls /usr/share/applications/*.desktop
Use mimeopen tool. It provides you nice options and the saved option is written to ~/.local/share/applications/defaults.list so that your selected option is saved as default.
mimeopen -d /path/to/myfile
Reference: https://wiki.archlinux.org/index.php/default_applications
