How to Run CUDA 6 samples

I installed CUDA 6 tool kit.
I have CUDA supported graphics card.
How to run the CUDA samples, Please help. How to create my own CUDA program, what else I need to install.
I have basic C,C++ knowledge.

Verify CUDA installation on Linux:
http://docs.nvidia.com/cuda/cuda-getting-started-guide-for-linux/index.html#verify-installation

Verify CUDA installation on Windows:
http://docs.nvidia.com/cuda/cuda-getting-started-guide-for-microsoft-windows/index.html#verify-installation

Linux CUDA Debug:
http://docs.nvidia.com/cuda/nsight-eclipse-edition-getting-started-guide/index.html#axzz38AKhTNOP

Windows CUDA Debug:
http://docs.nvidia.com/gameworks/index.html#developertools/desktop/cuda.htm%3FTocPath%3DDeveloper%20Tools|Desktop%20Developer%20Tools|NVIDIA%20Nsight%20Visual%20Studio%20Edition|NVIDIA%20Nsight%20Visual%20Studio%20Edition%204.0|CUDA%20Debugger|_____0