Very Computer

        I can't seem to be able to use any of the Shift-FN keys in Linux. I
need these keys in Emacs. Using 'S-FN?' in the .emacsrc file doesn't work.
Any ideas ?

Hong Siang.

:       I can't seem to be able to use any of the Shift-FN keys in Linux. I
: need these keys in Emacs. Using 'S-FN?' in the .emacsrc file doesn't work.

Probably you mean .emacs, and I'll assume that you want
to do this under X. Then use [S-fN], like in
        (global-set-key [S-f15] 'my-own-function)

Note that emacs' idea of the numbering of the function keys
may not correspond to the engravings. (The above was for my Shift-F5.)
Also note that some function keys may be swallowed by twm or so.

If your question did not concern X, then just bind the string
produced by the key.