KDE

I wanted to have a quick way to rotate the images I take with my digital camera. The Olympus Camedia C-4000 always writes "1" als orientation into the EXIF data (either it doesn't have an orientaiton sensor or it is broken), therefore I cannot rotate the images automatically by the command

jhead -autorot *.jpg

So I created a desktop file ~/bin/rotate90clockwise.desktpop with the following content

This is copied from http://users.pandora.be/Ice9/Linux stuff/Linux_tips.html. I have used the second method as the desktop file appeared to be disfunctional judging from its content and had been created during the time when the error appeared first (that was when I was playing with the File associations section of the control center). KDE returns "Couldn't find MIME type application/octet-stream" at startup and/or Konqueror returns the same error message when launching whatever application.

I have many files in strange formats that can be opened by applications that are not installed by default on any Linux distribution. How do I teach KDE to recognize these files based on their endings (like .ab1) and to open them - when clicked - with the correct application? Go to Control Center -> KDE Components -> File Associations -> Add -> Leave Group "all" and type in some short, descriptive name (e.g. ABI trace file) -> Under "Filename patterns" put the file extension (or any other pattern that enables KDE to recognize the file; e.g.