lxneng

# if cron is not available
$ vim runme.sh
#!/bin/bash
while true; do
  echo "Do useful stuff here"
  sleep 86400
done
$ nohup ./runme.sh &

lxneng

#!/usr/bin/env python
import urllib
import urllib2
try:
    import json
except ImportError:
    try:
        import simplejson as json
    except ImportError:
        raise ImportError("Need a json decoder")

lxneng

# This is an implementation of using python-oembed with api.embed.ly

# python-oembed http://code.google.com/p/python-oembed/
import oembed

# Embed.ly Multi Provider API Endpoint
OEMBED_ENDPOINT = 'http://api.embed.ly/oembed/api/v1'

# URL Schemes Supported
URL_SCHEMES = (

lxneng

In [1]: import oembed

In [2]: consumer = oembed.OEmbedConsumer()

In [3]: endpoint = oembed.OEmbedEndpoint('http://www.flickr.com/services/oembed', ['http://*.flickr.com/*'])

In [4]: consumer.addEndpoint(endpoint)

In [5]: response = consumer.embed('http://www.flickr.com/photos/wizardbt/2584979382/')

lxneng

# strip &submit=Search in url
<%= submit_tag "Search", :name => nil %>

# keep the search keyword in input field
<%= text_field_tag :search, params[:search] %>

lxneng

# 查看硬件信息
sudo  dmidecode

lxneng

mysql master-slave （Replication）配置笔记
感触最深的是：细节决定成败，尤其在Linux下配置服务。
Master：
系统 fedora8
数据库
+------------+
| version()  |
+------------+
| 5.0.45-log |
+------------+

lxneng

MySQL配置文件my.cnf 例子最详细翻译,可以保存做笔记用。
#BEGIN CONFIG INFO
#DESCR: 4GB RAM, 只使用InnoDB, ACID, 少量的连接, 队列负载大
#TYPE: SYSTEM
#END CONFIG INFO

#
# 此mysql配置文件例子针对4G内存，并在两个日ip 2w ,pv 20w 测试过的。
# 主要使用INNODB
#处理复杂队列并且连接数量较少的mysql服务器

lxneng

pool = ThreadPool(100)
#requests = makeRequests(some_callable, list_of_args, callback)
requests = makeRequests(get_data, get_urls, store_data)
[pool.putRequest(req) for req in requests]
while True:
    try:
        time.sleep(0.5)
        main.poll()
    except NoResultsPending:
        print "**** No pending results."

lxneng

# -*- coding: utf8 -*-
import logging
import logging.handlers
 
rootLogger = logging.getLogger('')
rootLogger.setLevel(logging.ERROR)
handler = logging.handlers.SMTPHandler(
    mailhost='smtp.example.com',
    fromaddr='[email protected]',
    toaddrs='[email protected]',