You can work with the resource fork for any file by simply adding "/rsrc" to the end of some file handling commands. For example, you could use this method to see which files within a directory contain resource forks:
% ls -al */rsrcYou can also use this flag on "cat" and "cp" commands, allowing you to display (not very useful) or copy the resource fork of a given file.
-rw-r--r-- 1 robg staff 0 Apr 25 2001 top.term/rsrc
-rwx---rwx 1 robg staff 0 Nov 21 22:33 travel.pdf/rsrc
I'm not sure how long this has been there, nor if the Developer Tools are required or not, but perhaps someone can find a good use for this modifier.

