import os

# 定义文件前缀和范围
file_prefix = 'mixed_32k_redstone_part_'
file_suffix = '_streaming_4096_bs_16.jsonl'
start_index = 1
end_index = 19
output_file = 'mixed_32k_redstone_qwen_4096_bs16.jsonl'

with open(output_file, 'w') as outfile:
    for i in range(start_index, end_index + 1):
        input_file = f'{file_prefix}{i}{file_suffix}'
        if os.path.isfile(input_file):
            with open(input_file, 'r') as infile:
                for line in infile:
                    outfile.write(line)
        else:
            print(f'Warning: {input_file} does not exist.')

print(f'All files merged into {output_file}')