sudo apt-get install wget python python-skype
mkdir skypelogs2text
cd skypelogs2text
wget http://other.fourisland.com/skypelogs2text.py
chmod +x skypelogs2text.py
./skypelogs2text.py
http://www.fourisland.com/2010/08/how-to-export-your-skype-chatlogs-to-text/