#!/usr/bin/env python
from datetime import date
import os
today = date.today().strftime("%b %d")
month = date.today().strftime("%b")
day = input("哪一天: ")
if day:
day = f" | grep -w \"{month} {day}\""
info = input("查询条件: ")
if info:
info = f" | grep -w \"{info}\""
lines = input("条数: ")
if lines:
lines = f" | head -{lines}"
print("查询结果: ".center(70))
os.system(f"lastb{day}{info}{lines}")