How to log the intermediate diagnostic data from command line?

After building a simulink model how can I save all the diagnostic data in a text file through command window without the need to open the model, build then view diagnostic data and save manually. I should be able to save the diagnostic data even when there is any error during build.

I tried doing with sldiagnostics and sldiagviewer but am not able to get the intermediate results.

[Pamu Jatin]

Hi, have you figured out how to do that?