05-05-2013, 08:51 PM
Hi. I've written an Applescript that will probably do what you want for reasonably small amounts of files. Files are strictly copied by missing names into the root level of the opposing folder; there is no accommodation for syncing files with disparate modification dates or putting files into appropriate subfolders.
set FirstFolder to choose folder
set secondfolder to choose folder
tell applicationFinderduplicate ((FirstFolder's entire contents)'s files whose name is not in (get (secondfolder's entire contents's files)'s name)) to secondfolder
duplicate ((secondfolder's entire contents)'s files whose name is not in (get (FirstFolder's entire contents's files)'s name)) to FirstFolder
end tell