- root
-- filename
-- folder
--- filename

import "package:glob/glob.dart";
import "package:glob/list_local_fs.dart";

void main() async {
  await for (final entity in Glob("**/filename").list()) {
    print(entity.path);
  }
}

As a result of the code above, it prints ./folder/filename, but not ./filename.

{filename,**/filename} has also been tested.

**filename works, but it also retrieves any file ending in filename.