sunfuze

cat /sys/fs/cgroup/memory/memory.stat | awk 'BEGIN{suffixes_len=split("B KB MB GB",suffixes)} {n_suffix=1; while($2 > 1000 &&
n_suffix < suffixes_len) {$2 /= 1024; n_suffix++;}; printf "%20s %7.2f %2s\n",$1,$2,suffixes[n_suffix]}'

sunfuze

# 事务隔离级别,
# READ-UNCOMMITTED 读未提交
# READ-COMMITTED 读提交
# REPEATABLE-READ 可重复读
# SERIALIZABLE 串行化
show variables like 'transaction_isolation';

# 事务事件执行事件大于 60 秒的操作
select * from information_schema.innodb_trx where TIME_TO_SEC(timediff(now(),trx_started))>60;

sunfuze

sunfuze

//copy: http://c.learncodethehardway.org/book/ex20.html

#ifndef __dbg_h
#define __dbg_h

#include <stdio.h>
#include <errno.h>
#include <string.h>

#ifndef NDEBUG

sunfuze

#! /bin/bash

# install dependencies
sudo apt-get install gcc cmake build-essential libgtk2.0-dev pkg-config libavcodec-dev libavformat-dev libswscale-dev python-dev python-numpy

# get source
git clone https://github.com/Itseez/opencv.git

cd opencv
mkdir build

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function hex2ascii(hex) {
  var str = '';
  for (var i = 0; i < hex.length; i += 2)
    str += String.fromCharCode(parseInt(hex.substr(i, 2), 16));
  return str;

};

function ascii2hex(ascii) {

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/*
 *  Copyright 2010 Georgios Migdos .
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software

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#!/bin/bash
#for c lang
find . -type f -iname "*.[chS]" | xargs etags -a

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#!/bin/bash
#
# redis    Startup script for redis processes
#
# author: snowolf
#
# processname: redis

redis_path="/usr/local/bin/redis-server"
redis_conf="/etc/redis/redis.conf"

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import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.regex.Matcher;
import java.util.regex.Pattern;


public class CharacterUtil {
  
	public static String removeSymbol(String chs) {