使用Java查找硬链接文件的所有路径

import java.io.IOException;
import java.nio.file.*;
import java.nio.file.attribute.BasicFileAttributes;
import java.util.*;

public class HardLinkFinder {

    public static void main(String[] args) {
        if (args.length == 0) {
            System.out.println("Usage: java HardLinkFinder <file>");
            return;
        }

        Path filePath = Paths.get(args[0]);
        try {
            List<Path> hardLinks = findHardLinks(filePath);
            System.out.println("Hard links for " + filePath + ":");
            for (Path link : hardLinks) {
                System.out.println(link);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static List<Path> findHardLinks(Path filePath) throws IOException {
        List<Path> hardLinks = new ArrayList<>();
        long inode = getInode(filePath);

        if (inode != -1) {
            Files.walkFileTree(filePath.getParent(), new SimpleFileVisitor<Path>() {
                @Override
                public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                    if (getInode(file) == inode && !file.equals(filePath)) {
                        hardLinks.add(file);
                    }
                    return FileVisitResult.CONTINUE;
                }
            });
        }

        hardLinks.add(filePath); // Add the original file path
        return hardLinks;
    }

    private static long getInode(Path path) throws IOException {
        try {
            return (long) Files.getAttribute(path, "unix:ino");
        } catch (UnsupportedOperationException e) {
            System.out.println("Inode retrieval is not supported on this file system.");
            return -1;
        }
    }
}