Export field contents to /tmp directory

[astra]

I am trying to export a container field containing a PDF to the /tmp/ directory and activate Preview.app afterwards for the file. However, I cannot figure out how to specify the output file in the dialog you get when you create an "Export Field contents" script step.

I've tried file:/tmp/filename.pdf, file:/private/tmp/filename.pdf , the combinations with filemac: and also created a symlink to the /tmp directory and try using the symlink to no avail.

It is not a rights problem: I can export full records to the /tmp directory manually without any problem. Have any other forum members succesfully scripted an export to a temp directory on OS X to preview the file with another application? I'd reallly like to know how.

Greetings,

Fred van Dijk