Use opendir and readdir to get a list of all the files (by name) in the folder. Then just do pattern match on the file name.
opendir DIR, 'aman' or die;
foreach my $f (readdir DIR)
{
if ($f =~ m/\Aabc.+xyz\z/)
{
print "found the file $f\n";
} // if
} // foreach
closedir DIR or warn;