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PHP and MySQL
When discussing real time communication, there aren’t many solutions that can rival the power of a simple webchat. What is even better, is that you already have all the tools you need to create one – your web browser. This, coupled with the fact that this is also one of the most requested tutorials by Tutorialzine’s readers, means that it is about time to start coding.

In this two-part tutorial, we will be creating an AJAX Web Chat using PHP, MySQL and jQuery. In this first part, we will be discussing the PHP & MySQL side, and next week we will continue with the jQuery and CSS front-end.

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Class to back up entire databases and email them out, or individual tables.

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The internet really does have everything, and it's all available for download without lifting a finger. A series of helpful scripts, all installable in a few minutes, can transform your computer into an automatic media downloading machine.

We've featured all sorts of automatic downloaders that grab TV shows after they air and movies as soon as they're released, but you don't have to stop there. You can schedule music, comic books, video games, and practically anything else as a download with minimal effort. In this post, we'll look at how to set up existing scripts to acquire all kinds of media and use a tool called FlexGet to handle the rest.

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We might be known for our Windows articles, but in 2010 we sure posted a lot of really in-depth articles covering Linux. Here’s the 20 best articles that we covered this year, covering everything from how to tweak your setup to how to use Linux to fix Windows.

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Helpful info for those learning Linux These Linux tips are meant to provide just enough information to whet your appetite for more.
They are updated frequently and are not presented in any particular order.

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Linux Newbie Administrator Guide

This is a practical selection of the commands we use most often. Press to see the listing of all available command (on your PATH). On my small home system, it says there are 2595 executables on my PATH. Many of these "commands" can be accessed from your favourite GUI front-end (probably KDE or Gnome) by clicking on the right menu or button. They can all be run from the command line. Programs that require GUI have to be run from a terminal opened under a GUI.

Notes for the UNIX Clueless:
1. LINUX IS CASE-SENSITIVE. For example: Netscape, NETSCAPE and nEtscape are three different commands. Also my_filE, my_file, and my_FILE are three different files. Your user login name and password are also case sensitive. (This goes with the tradition of UNIX and the "c" programming language being case sensitive.)
2. Filenames can be up to 256 characters long and can contain letters, numbers, "." (dot), "_" (underscore), "-" (dash), plus some other not recommended characters.
3. Files with names starting with "." are normally not shown by the ls (list) or dir commands. Think of these files as "hidden". Use ls -a (list with the option "all") to see these files.
4. "/" is an equivalent to DOS "" (root directory, meaning the parent of all other directories).
5. Under Linux, all directories appear under a single directory tree (there are no DOS-style drive letters).
6. In a configuration file, a line starting with # is a comment.


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