Need help to calculate AVO attributes

[abhash.kumar]

Hi,
I need to calculate AVO attributes (intercept and gradient) from the common shot gather data. I created the 2D synthetic shot gathers using Seismic Unix with an assumption of perfectly flat layers in the model domain. Does anyone know or have any shell scripts that could be used to create CDP gather from common shot gather, perform NMO correction, and extract AVO attributes from the NMO corrected gathers? I would be very grateful for any help in this regard.

Best,
Abhash Kumar