"Tips"ubuntu set the corresponding PDF reader

The default PDF Reader in Ubuntu is evince, but because Ubuntu's own stability is not good enough, it's always impossible to turn off the PDF on my Ubuntu 12.04 and use Pkill.

Ubuntu can modify the PDF default Reader in the following ways:

There are other applications that you can choose from.

But the problem came again, and the mupdf I installed could not be displayed.

This does not provide you with the ability to choose a path.

So we have to solve the problem by the following methods:

$ cd/usr/bin

$ mv evince Evince.ori

$ ln-s/usr/local/bin/mupdf evince