@dan rathbun said: But I think his intention, is to do batch mode export to dae for a whole dir of skp files. So manual drag-n-drop is out of picture. He can use a shell script, no doubt,... ... but he could also do batch export, from within SU Ruby. You can drop multiple files onto a MAC command file or an 'applet', they are processed in turn, so the code could in turn make txt>>rb, open each SKP dropped; the rb file doing the SKP export, renaming itself txt and closing the SKP for each one. A much simpler way to export a folder of SKPs as .dae is to have a permanently loaded Ruby tool - I quickly wrote this as an example... http://forums.sketchucation.com/viewtopic.php?p=347277#p347277