use strict;
use warnings;
use File::LibMagic;
use File::Spec;

my $mm = File::LibMagic->new();
my $path='/home/backup/';

opendir(my $dh, $path) or die("Can't open dir $path");
while( my $file=readdir($dh) )
{
  my $file_path=File::Spec->join($path,$file);
  next unless -f $file_path;
  my $type=$mm->checktype_filename($file_path);
  $type=(split('[/;]',$type))[1];
  print "$type\n";
}
closedir($dh);