ComputersIntegrating a new application in Gnome

part of the screenshot defining the new application as defaultJust found out that the task of adding a new application for a new file-type on gnome (so that I can run it by double click, or from the mail client on an attachment, is easier than I suspected.

The problem: my bank send me my account information in files that are managed by an application that they supply. It’s a MS Windows application, but fortunately most of it runs ok under wine. The files are zip files, with a custom extension *.fm6.

The first step is to make gnome aware that .fm6 files are different from zip files, and are to be treated differently. That is called “adding a MIME type” to the system. To do so, I added a file, called fastm6.xml, in $HOME/.local/share/mime/packages/, and then issued the command

update-mime-database $HOME/.local/share/mime

Content of the $HOME/.local/share/mime/packages/fastm6.xml file:

<?xml version="1.0" encoding="UTF-8"?>
<mime-info xmlns="">
<mime-type type="application/x-fastm6">
<glob pattern="*.fm6"/>
<comment>Caja de Ingenieros files</comment>

To add an icon for the new mime type, simply drop a png file (size 48×48) into $HOME/.local/share/icons called application-x-fastm6.png. Refresh your nautilus windows and voilĂ , you have them.

Now you can right click on the icons can choose the application you want to run for them (“open with another application” and the enter it as a default). In my case it was a shell script like that:

cp $1 $fastdir
cd $fastdir
wine c:/FAST/FASTM6/fastm6.exe $(basename $1)

but you mileage may, obviously, vary.

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