Screen recording

Use that http://www.omgubuntu.co.uk/2013/12/simple-screen-recorder-linux

Install Simple Screen Recorder in Ubuntu 12.04 & Up

Want it? The app is free and can be installed on Ubuntu 12.04 and up by adding its dedicated PPA to your Software Sources.

sudo add-apt-repository ppa:maarten-baert/simplescreenrecorder

sudo apt-get update && sudo apt-get install simplescreenrecorder