I want to set default a specific program for open ANY files absolutely ANY(*.*), any extension, any mime type. ABSOLUTELY ALL

I build a python program to automated choose the program for any file. the app-chooser.py content:

#!/usr/bin/python
import sys, os, os.path
filename = sys.argv[1];
extension = os.path.splitext(filename)[1];
if extension == "txt": os.system("gedit " + filename);
if extension == "mp4": os.system("vlc " + filename);
if extension == "html": os.system("opera " + filename);
if extension == ".py": os.system("python " + filename);
if extension == ".sh": os.system("bash " + filename);
if extension == ".exe": os.system("wine " + filename);
exit()

The app-chooser.py are compiled in a standalone linux executable, located in "/usr/bin/app-chooser".

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1 Answer

You can define a new mimetype for your program:

1. Create a file e.g. ~/.local/share/mime/packages/application-x-app-chooser.xml with the following content:

   <?xml version="1.0" encoding="UTF-8"?>
   <mime-info xmlns=""> <mime-type type="application/x-app-chooser"> <comment>mime type matching all files with an extension</comment> <icon name="application-x-app-chooser"/> <glob-deleteall/> <glob pattern="*.*"/> </mime-type>
   </mime-info>

2. Update the MIME database:

   update-mime-database ~/.local/share/mime

3. Set the .desktop file used to open the matched files:

   xdg-mime default /path/to/file.desktop application-x-app-chooser

Using ~/.local/share/mime installs it as a user-specific mime type, replace this path with /usr/share/mime for a system-wide installation.

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