[OSGeo-Discuss] Command line tool for dissolving polygon boundaries

[Dan Putler]

All,

Is there a FOSS command line tool that runs under Linux for dissolving 
polygon boundaries based on a field in an attribute table that (ideally) 
works directly with shapefiles? There are a number of non-cli tools out 
there, but I'm working with all US counties on a county by county basis, 
and wanted to avoid importing each individual county into another product.

Dan