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I'm developing a Linux application that has its own file format. I want my app to open when you double-click on those files.
How can I register a file extension and associate it with my application on Linux? I'm looking for a way that is standard (works with GNOME and KDE based systems) and can be done automatic when my program is installed or run for the first time.
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MIME types are a sort of identification card for files on Ubuntu. A file's MIME type is usually determined by the extension of its filename; for example, a text file may end in . txt, and image file might end in . png or . jpg.
3.2. Another way to get the MIME type of a file is by reading its content. We can determine the MIME type according to specific characteristics of the file content. For example, a JPG starts with the hex signature FF D8 and ends with FF D9. This is slower than the file extension approach due to the extra I/O efforts.
MIME files are more commonly seen using a . MIM extension.
All MIME type information is stored in a database. The MIME database is located in the directory /usr/share/mime/ . The MIME database contains a large number of common MIME types, stored in the file /usr/share/mime/packages/freedesktop.
Use xdg-utils from freedesktop.org Portland.
Register the icon for the MIME type:
xdg-icon-resource install --context mimetypes --size 48 myicon-file-type.png x-application-mytype Create a configuration file (freedesktop Shared MIME documentation):
<?xml version="1.0"?> <mime-info xmlns='http://www.freedesktop.org/standards/shared-mime-info'> <mime-type type="application/x-mytype"> <comment>A witty comment</comment> <comment xml:lang="it">Uno Commento</comment> <glob pattern="*.myapp"/> </mime-type> </mime-info> Install the configuration file:
xdg-mime install mytype-mime.xml This gets your files recognized and associated with an icon. xdg-mime default can be used for associating an application with the MIME type after you get a .desktop file installed.
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