use File::List;
my $dir= "/home/toma/perl/examples/filelist";
my $search = new File::List($dir);
# \ needed to make . an ordinary character in the regex
my @files  = @{ $search->find('\.b$') };
foreach my $filename (@files)
{
  if (-f $filename
      and
      -w $filename)
  {
    print "Can probably remove $filename\n";
    # Uncomment when this seems to work:
    # unlink $filename or die "Can't unlink $filename";
  }
}