I am using Ubuntu 10.04. Sometime back after an update, all files in Ubuntu started showing a mime type of text/plain. This means that double clicking on any file opened it using gvim which is really annoying. How do I get Nautilus to recognize mime types based on file extension?



After some poking around I found the answer and everything is back to normal. All I had to do was

sudo update-mime-database /usr/share/mime

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