以下是一个使用Python的示例代码，可以按文件哈希值分组，并列出与每个哈希关联的文件名：

import hashlib
import os

def group_files_by_hash(directory):
    file_hashes = {}
    
    for root, dirs, files in os.walk(directory):
        for filename in files:
            file_path = os.path.join(root, filename)
            
            with open(file_path, 'rb') as file:
                file_hash = hashlib.sha256(file.read()).hexdigest()
                
            if file_hash in file_hashes:
                file_hashes[file_hash].append(file_path)
            else:
                file_hashes[file_hash] = [file_path]
    
    return file_hashes

directory = '/path/to/directory'
file_hashes = group_files_by_hash(directory)

for file_hash, file_paths in file_hashes.items():
    print(f'Hash: {file_hash}')
    print('Files:')

    for file_path in file_paths:
        print(file_path)

    print()

请将/path/to/directory替换为要检查的目录的路径。此代码将递归地遍历目录中的所有文件，并计算每个文件的SHA-256哈希值。然后，它将根据哈希值将文件分组，并打印出每个哈希值关联的所有文件名。