hum. Earlier, you said "I only want to print the names of files" (Upd: ... but I see you meant you meant something quite different. ) 

use strict;
use warnings;

use File::Find::Rule qw( );
use File::Basename   qw( basename );

my %files;
for (
   File::Find::Rule
      ->file()
      ->name('*.rtf', '*.ftp')
      ->in('.')
) {
   my ($name, $ext) = basename($_) =~ /^(.*)\.(.*)\z/;
   push @{ $files{$name}{$ext} }, $_;
}

for my $name (%files) {
   if ($files{$name}{rtf} && $files{$name}{ftp}) {
      print "$_\n" for @{ $files{$name}{rtf} }, @{ $files{$name}{ftp} 
+};
   }
}

[download]

This can probably be done cleaner.

In reply to Re^5: Printing files that has two different extensions in a given directory by ikegami
in thread Printing all the files that have both ".rtf" and ".ftp" by searching recursively in a given directory by Anonymous Monk

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