Automated text file import

I need to set up an automated import of text files into Oracle 8.1.7.4 on HP-UX, am looking for advice.

Logic flow would look something like:

On a periodic basis:
  Examine a directory for files (names not know in advance)   Iterate through any found files:
    Import contents into a table
    Delete the file

Can this be done from within Oracle, or does it need to be set up as a "push" from the OS? Any suggestions appreciated.

-- 
Randy Harris
(tech at promail dot com)