#!/usr/bin/env python3 import sys def is_blacklisted(line, blacklisted_domains): for domain in blacklisted_domains: if domain in line: return True return False with open(sys.argv[1]) as f: blacklisted_domains = [line.rstrip('\n') for line in f] for line in sys.stdin: if not is_blacklisted(line, blacklisted_domains): print(line, end='')