I'm using OS X 10.6 & Filemaker Pro 12; I'd like to have a script in FM to automatically open a .pdf file from a container field using Preview (dumping the file on the desktop) but it has to be using a variable path for whomever is using this particular hosted file in our local (or remote) office network
I see that this question is a little old, but for anyone who comes across it now looking for help...
It sounds like what you need is the "Get ( DesktopPath )" function, as part of a Set Variable script step. It would be something like this (in pseudocode):
Also, be aware that if you're in a mixed environment (Windows & Mac), you may need a slightly more complicated Set Variable statement to accommodate for different path notations (see http://www.filemaker.com/11help/html/create_db.8.32.html).