ascertain

摘要： def get_public_ip(): from urllib.request import urlopen import re as r d = urlopen('http://checkip.dyndns.com').read() return r.compile(r'(\d+\.\d+\.\ 阅读全文

摘要： < file cat dd iflag=nonblock status=none if=file printf '%s' "$(< file)" cp file /dev/stdout awk '{print}' file sed '' file 阅读全文