Mel Script for Maya Scene Analysis

I need a mel script to analyse a Maya Scene and save the output to a txt, csv or xml. file. Script must be suitable to run through [login to view URL] on cmd and the output file must be parseable. What I need to be analysed is. + Cameras Default Scene Camera List of Renderable Cameras + Render Settings Renderer Image width&height Output File Name Output File Format + Output Paths Remove all paths for render output, elements etc. Thanks in Advance for your interest.