Deletes old *.bag files, keeps the last 3

DeleteOldFiles.java

import java.io.File;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;

class DeleteOldFiles {
    public static void main(String[] args) {
        deleteFiles();
    }
    
    static void deleteFiles() {
        File file = new File("/home/lvusers/bags");
        File[] files = file.listFiles((path) -> path.getName().endsWith(".bag"));
        List<File> newFiles = Arrays.stream(files)
                .sorted((a,b) -> Long.compare(a.lastModified(), b.lastModified()))
                .limit(3)
                .collect(Collectors.toList());

        Arrays.stream(files)
                .filter(f -> !newFiles.contains(f))
                .forEach(f -> {
                    System.out.println("Deleting: " + f.getName());
                    f.delete()
                });
    }
}