import sys
import os
import re
arg = sys.argv[1].encode()
print(arg)
files = os.listdir()
for file in files:
        if file.endswith('.log'):
                with open(file, mode='rb') as log:
                        for line in log:
                                string1 = re.search(arg, line)
                                if string1:
                                        print(line)