I have 150 Debian Jessie machines that open ODS files in Gnumeric when double-clicked despite LibreOffice Calc being installed. I know it is possible to change this by right-clicking the ODS file and changing its default program from the Properties window, but getting 150 users to do this is not an option. They all use xfce4 and thunar.I need to do this via CLI so I can do it across all workstations remotely. I have looked in /usr/share/applications and ~/.local/share/application/mimetypes.list with no luck - comparing the files before and after changing it via GUI revealed no changes here.How can I use bash to make these workstations open ODS files with LibreOffice Calc by default?EDIT: Unlike the answers to this question, my Jessie installs do not have ~/.config/mimeapps.list or /usr/share/applications/defaults.list
Setting default application for filetypes via CLI?
debian;libreoffice;mime types;defaults;file types
You can use mimeopen with -d option:man mimeopen :DESCRIPTION   This script tries to determine the mimetype of a file and open it with   the default desktop application. If no default application is   configured the user is prompted with an open with menu in the   terminal.-d, --ask-default       Let the user choose a new default program for given files.Example:mimeopen -d file.mp4sample output:Please choose a default application for files of type video/mp4   1) VLC media player  (vlc)   2) Other...Verify it:xdg-open file.mp4