Update : Looks like someone in skype realized that they had not put in instructions for linux and have update their page. It’s the same as below.

A lot of us have been facing this issue that skype seems to just kill itself after you login. While skype issued a temporary fix today morning for Windows and Mac, they have conveniently forgotten to mention a solution for their linux client.

Based on their solution for Windows, I managed to fix it for linux as well. Just quit skype and do the following -

rm ~/.Skype/shared.xml

And voila! Restart skype and it should work fine.