Set Default File Association in Ubuntu Unity for Applications Not Listed in “Open With”


One can use “mimeopen -d file” to invoke an application to open a file in the command line. Afterwards the used application will be the default application associated with the file type, even from the Nautilus.

Example: Set nano as the default program to open *.txt files:

$ mimeopen -d file.txt

Please choose a default application for files of type text/plain

1) notepad (wine-extension-txt)
2) gedit (gedit)
3) GNU Emacs 23 (emacs23)
4) Other…

use application # 4

use command: nano

Opening “useful.txt” with nano (text/plain)


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