KiCad consists of the following components: Eeschema - editor of electrical circuits; Pcbnew - editor of printed circuit boards (include another view of volumetric images of printed circuit boards); Gerbview - view photomasks; Cvpcb - choice of seats for the components used on the diagram. Kicad - project Manager.
Work in KiCad is performed through a graphical interface. You drag the workspace necessary elements, add the links between them, make captions. On the website of the programme you can download the documentation, but unfortunately, it is in English.
Installing KiCad in Ubuntu Linux
Program KiCad you can install from the standard Ubuntu repositories, and you can use PPA repository, which may include the newer version. To install KiCad from PPA repository, run in a terminal point:
sudo add-apt-repository ppa:adamwolf/kicad-testing-daily sudo apt-get update sudo apt-get install kicad