felix021

import urllib
print len(urllib.urlopen('http://106.75.28.160/UCloud.txt#rd?n').read().split('UCanUup')) - 1 #728

felix021

#!/bin/bash

#注：很多发行版自带SysBench的是0.4.12，但有些参数（如oltp-tables-count）是0.5才支持的，建议从官方源获取源码编译运行

cmd="sysbench --test=/root/src/sysbench-0.5/sysbench/tests/db/oltp.lua \
--oltp-table-size=2000000 \
--oltp-tables-count=20 \
--oltp-range-size=100 \
--oltp-point-selects=10 \
--oltp-simple-ranges=6 \

felix021

#!/usr/bin/python
#coding:utf-8

import os
import sys
import re

# Usage:
#     mysqldump -u$user -p$pass --no-data --databases $database > db.sql
#     ./sql_splitter.py db.sql create.sql modify.sql

felix021

<?php

class Exmail
{
    protected $token = null;

    public function __construct($corpId, $corpSecret, $debug = false)
    {
        $url = sprintf('https://api.exmail.qq.com/cgi-bin/gettoken?corpid=%s&corpsecret=%s', $corpId, $corpSecret);
        $resp = self::getJson($url);

felix021

/*
 * 安装nvm和相应npm包
 * $ nvm install v8.9.4
 * $ npm install keccakjs secp256k1
 */

const { randomBytes } = require('crypto')
const secp256k1 = require('secp256k1')
const SHA3 = require('keccakjs')

felix021

#!/usr/bin/env node
'use strict';

// ethereum: generate signed transactions
// source: https://gist.github.com/neuhaus/7387edf411513a9f11f1242dcec8d62e

const fs        = require('fs');
const rls       = require('readline-sync');
const Accounts  = require('web3-eth-accounts');
const web3utils = require('web3-utils');

felix021

#!/bin/bash

set -x

ZABBIX_SERVER=192.168.1.100

wget http://repo.zabbix.com/zabbix/3.2/ubuntu/pool/main/z/zabbix-release/zabbix-release_3.2-1+xenial_all.deb
dpkg -i zabbix-release_3.2-1+xenial_all.deb
apt update
apt -y install zabbix-agent

felix021

之前接触以太坊的时候，确实能搜到很多资料，还有一个看起来很丰富的 Homestead Documentation，但这些材料都太不接地气了，看完还是不知道以太坊区块链到底长什么样，因此整理了这篇说明，希望能够在一定程度上解决这个问题吧。

1. 安装 ethereum (@ubuntu)

参考 官方说明:

sudo apt-get install software-properties-common
sudo add-apt-repository -y ppa:ethereum/ethereum
sudo apt-get update

sudo apt-get install ethereum

felix021

def IdNumChecksum(id_num):
    return '10X98765432'[sum([int(num) * (2 ** (17 - idx) % 11) for idx, num in enumerate(id_num[:17])]) % 11]

felix021

#coding:utf-8

import random

class Node(object):
    def __init__(self, height, key=None):
        self.key = key
        self.next = [None] * height

    def height(self):