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I'm trying to write a script that launches the default application for a given mime type. For example, I would like to say my-script text/plain and have it open KWrite for me.

What I know is that you can use xdg-mime to query what is the default application for a given mime type

$ xdg-mime query default text/plain
org.kde.kwrite.desktop

However, I don't know what is the command I can use to launch KWrite given org.kde.kwrite.desktop. How can I do that? Is having the name of the desktop file enough or do I also need to find out where it is stored (/usr/share/applications, .local/share/applications, etc)?


By the way, I don't think I can solve my original problem using xdg-open because XDG open expects to receive a filename or URL as a parameter and I want to be able to launch my applications without needing to pass a filename. For example, I want to be able to open the text editor on a blank file buffer or open my web browser on its home page.

  • How is this easier with a Python script? – hugomg Aug 25 '16 at 20:31
3

This answer over on askubuntu.com covers many different ways to solve the problem. The one that was the closes to doing what I wanted was the gtk-launch command:

gtk-launch org.kde.kwrite.desktop

One thing I like about gtk-launch is that it can find the appropriate desktop file even if you only give it the name.

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