I have 200 shapefile in a folder. All of them are similar. I need to select by attribute then apply the Eliminate tool and save the shapefiles.
How do I do this automatically with all the feature classes using ModelBuilder?
I would try the Iterate Feature Classes tool which:
Iterates over feature classes in a Workspace or Feature Dataset.
I have not tested but would assume that it will work on shapefiles within a folder workspace.
You could use the Iterate Files tool available for ModelBuilder which:
Iterates over files in a folder.