If not, do you mean the same thing by "script" as AutoCAD does?  [It has a specific meaning in AutoCAD, but I have known people to use it in a more generic way.]  A Script [.SCR] file could presumably be written that would draw that drawing again, but it would be a powerfully long Script, and it's hard to imagine how to automate the conversion from the .DWG file, since no record is kept of the command sequence, only the resulting drawing entities.  But if the only reason you want to do that is to end up with a .DXF file, see the first paragraph.