Abaqus - Edit input file to allow report generation

I run my models based on preexisting input files (available through Abaqus examples). How do i modify the input file directly to have it produce a report of specific output variables. I think i know how to set this up via the GUI but not how to write commands for this in the input file. I am working on a parametric study where I run a lot of input files in batch mode and I would like certain output variables and their min/ max values in a report or text file from each run which I can parse through later in python or matlab. Thanks!