phnessu4

#receiver has ip
#receiver
nc sender-IP sender-port > rece.file 

#sender
nc -l sender-port < send.file


#receiver doesn't have ip
#sender

phnessu4

Summary: PHP 5 - A powerful scripting language
Name: php5
Version: 5.4.14
Release: 1
Source0: php-5.4.14.tar.gz
Group: Networking/Daemons
License: GPLv2
BuildRoot: %{_tmppath}/%{name}-%{version}-buildroot
BuildPrereq: libmcrypt-devel
BuildPrereq: libmcrypt

phnessu4

#vim下查看换行符
set list

#vim下查看windows换行符
e ++ff=unix % 

#替换windows换行符
%s/^M$//g

phnessu4

#select data group by day 按天统计数据
select count(id),DATE_FORMAT(time,'%Y-%m-%d') from user where  TO_DAYS(NOW()) - TO_DAYS(time)<=100 group by DATE_FORMAT(time,'%Y-%m-%d') order by time desc;

phnessu4

        NSError *error = nil;
        NSData *jsonData = [json dataUsingEncoding:NSUTF8StringEncoding];
        
        if (jsonData) {
            id jsonObjects = [NSJSONSerialization JSONObjectWithData:jsonData options:NSJSONReadingMutableContainers error:&error];
            
            if (error != nil) {
                NSAssert(true, @"error is %@", [error localizedDescription]);
            }

phnessu4

#计算脚本运行时间
time  xxxx

#输出文件长度
ls -l | awk '{ print $5}'

#判断文件是否为空
ls -l | awk '{ if(!$5) print "empty" }'

#计算目录下所有.c文件行数

phnessu4

/**
 * group by day
 * @link https://gist.github.com/phnessu4/5636642
 * @param query document {key1:123,key2:456}
 */
var count_by_day = function(query){
    return db.action.group(
    {
        keyf: function(doc) {
            var date = new Date(doc.time);

phnessu4

<?php
//Export Caesar Hash 
$hash = array_flip(array('0','1','2','3','4','5','6','7','8','9','a','b','c','d','e','f'));
$hash_length = count($hash);
$arr = array('a','b','c','d','e','f','g','h','i','j','k','l','m','n','o','p','q','r','s','t','u','v','w','x','y','z');

foreach ($hash as $key => $value) {
  
	$arr_index  = rand(0, count($arr)-1);
	$hash[$key] = $arr[$arr_index];

phnessu4

/**
 * @doc http://fuelphp.com/docs/classes/mongo/methods.html
 * has changed by remove profiling setting
 *
 * sample config
 *	'mongodb' => array(
 *		'hostname' => 'localhost',
 *		'database' => 'database',
 *		'username' => 'admin',
 *		'password' => 'admin',

phnessu4

#删除git submodule
git rm --cached /path/to/source