import glob
import os
src_dir = '/root/*.txt' # 利用通配符查找后缀名为txt的文件
dest_file = 'result.txt'
with open(dest_file, 'w') as f_w:
for file_name in glob.glob(src_dir):
with open(file_name) as f_r:
for line in f_r:
f_w.write('%s %s' % (file_name, line))
os.remove(file_name)
python2.7语法, py3请自行相应改下