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  Find files by size in Linux

In Linux systems, you may encounter a situation where there is no enough space on the system while you are trying to install some new packages or writing some data. In this case, you may want to clear some unneeded files. A frequent need will be find the largest files in the system so that they can be deleted first and disk space can be released quickly. In this post, we will show a simple command to find files by size so that we know what files are taking the specified space on the system, This...

   LINUX,FILESIZE,FIND     2020-04-25 08:02:45

  Features of Google Android 4.1 Jelly Bean

In today's Google IO 2012 in San Francisco, Google announced its new Android system Android 4.1 Jelly Bean. It's a whole new Android OS and many new features are added to it. Let's check out what new features are added to Jelly Bean.1.  Projector ButterIt uses VSync and Tripple buffering to improve the interactivity experience and increase frame rate. It makes Jelly Bean the fastest and smoothest Android ever2. New home screenYou can customize the home screen. You can re-size the home scree...

   Android, Google IO, Android 4.1, Kelly Bean     2012-06-27 12:49:49

  How to use Chome dev tool to find event handler bound to an element

As a front end developer, there is frequent need to debug JS code and sometimes need to find out what event handler has been bound to a HTML element. In this post, we will show how to find out the click event handler bound to a HTML element, this same applies to other events as well. Nowadays, a web application is usually very complicated and there are lots of JS codes which makes it difficult to find out what click event handler has been bound to a HTML element, especially when the JS source co...

   JAVASCRIPT,CHROME,CHROME DEV TOOL,EVENT LISTENER     2019-08-17 22:14:36

  One Way to Quickly Locate SQL with High CPU Usage in MySQL

When the CPU usage of a MySQL database rises abnormally, it's necessary to quickly identify the problematic SQL statements. In this post, we try to provide one way to achieve this.  Below are the actual steps. 1. Use the top command to find the threads with the highest CPU usage in the MySQL process. # Find the MySQL process ID ps -ef | grep mysql # Use the process ID to find the thread IDs with the highest CPU usage: top -H -p In top, press P to sort by CPU usage. Note the thread ID, fo...

   MYSQL,DEBUG,HIGH CPU,SLOW QUERY     2024-08-01 21:25:48

  Google+ doesn't support Firefox 23?

Mozilla just released a new version of Firefox--Firefox 23, but after upgrading to the new version. We cannot login to Google+ anymore, instead it will show a page which says "Your browser is no longer supported" and it gives some choices to download new web browsers. It also allows to download Firefox. But the thing is we have updated to the latest version. Also when clicking on the "Download Firefox" link, it is redirected to the download Firefox for Android page, is it weird? Is this becaus...

   Firefox 23,Google+     2013-08-10 21:46:27

  Life in Apple design team

While in mentioning about Apple, everyone of us will think of the amazing products shipped out by Apple such as iPhone and iPad. We are all impressed by its smooth design and handy user experience. But as a outsider do you know the story behind the amazing design of Apple? Apple has a team of world class designers and they are leading the fashion of design. What's the life in Apple's design team? Ben Williamson from Apple shared one story of him which can give us some hints on what the life is ...

   Apple,Design,Perfect     2014-01-02 07:00:27

  How to apply Domain Level Group Policy

As a system administrator, you may often need to create a Windows domain of a computer network in which all user accounts, computers, printers and other security principals, are registered with a central database (called a directory service). Also one or more domain controllers need to be deployed to enable managing the domain. In this post, we will show you how to apply Domain Level Group Policy. There are lots of posts which have covered how to promote a Windows server to a Domain Controller. ...

   Group Policy,Domain Controller,Account Policy, GPO     2015-03-19 03:46:34

  Mark Zuckerbeg's hacker way

According to TechCrunch, Facebook CEO Mark Zuckerberg wrote codes for the latest mobile IM application : Poke, the tone played when receiving push notifications is from the mouth of Zuckerberg. This approach reflects the way pursued by Zuckerberg : hacker way.As one of the earliest features of Facebook the "Poking" is invented by Zuckerberg, it is not surprising that Zuckerberg involves in Poke's development.Zuckerberg recorded his own voice on the phone initially just for fun. But he was later ...

   Poke,Facebook,Snapchat, Mark Zuckerberg     2012-12-24 12:01:52

  PHP to get access token for Facebook app

Since Facebook is now using OAuth 2.0 to authenticate apps to access user information. the SDK of Facebook has provided developers some useful functions to get authentication done. For example, in PHP SDK, there are getAccessToken(), getLoginUrl() etc. But unfortunately, for me I cannot use getAccessToken() method to get the user access token, it only returns me the app access token. Finally I gave up this approach to get access token for the time being. I may later retry this approach if I have...

   Faceook,PHP,Access token,signed request     2012-03-27 12:37:46

  PHP to output string to client terminal

It is a common task to echo messages to the user using PHP. There are lots of ways where the message can be echoed to the client terminal(browser or console window) through PHP. These includes some well know debug methods like var_dump() and var_export() etc. In this post, we will show you some other methods shared by Laruence, one of the core members of PHP development team. 1. echo First comes with the most common one : echo. $str = "Hello PHP\n"; echo $str; 2. print Then comes another c...

   TRICKS,DEBUG,OUTPUT,PHP     2015-10-01 03:16:56

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