# setup: http://www.raspberrypi.org/help/camera-module-setup/
sudo apt-get install python-picamera

vcgencmd version
vcgencmd get_camera

# camera commands:
# http://www.raspberrypi.org/documentation/usage/camera/raspicam/README.md

# raspistill:
# http://www.raspberrypi.org/documentation/usage/camera/raspicam/raspistill.md
raspistill -o click.jpg

# raspivid:
# http://www.raspberrypi.org/documentation/usage/camera/raspicam/raspivid.md
# default 5 seconds, use -t <msecs> to customize
raspivid -o vid.h264

# picamera docs:
http://www.raspberrypi.org/documentation/usage/camera/python/README.md
http://picamera.readthedocs.org/en/latest/api.html