Display Users is a Perl script for creating automatic user directory
Unlike conventional user lists, this one does not require the webmaster
to edit the page to include new users.
By using two simple text files within the user's home directory, users
can include or exclude themselves and even redirect information such as the
email address and home page.
Since inclusion in the directory listing
relies on the presence of a file in the user's home directory, deleting the
account of the user will automatically result in the removal of the entry in
the user directory.