⎕FNAMES Return names of currently-tied files

The niladic function ⎕FNAMES returns a character matrix of the names of the component files currently tied by this APL task, in the same order as the tie numbers returned by ⎕FNUMS. Names are padded to the right with blanks as necessary. The names are returned in the same form in which they were tied.

For example, under Linux you might have:

      'RUN3' ⎕FTIE 2
      '1 RUN4' ⎕FTIE 0
3
      '/home/jim/RUN5.aqf' ⎕FTIE 8
      ⎕FNUMS
2 3 8
      ⎕FNAMES
RUN3
1 RUN4
/home/jim/RUN5.aqf