So, you want to have your own online store. Is it going to be expensive to get started? Will you need web designers or an expensive solution to create that store? How big is the job?
If you don’t want to spend a small fortune on the software to create your online store and you do like to experiment with your own web development you might consider doing it yourself with open source shopping cart software. This can create an entire online solution for your online store and can even be integrated with other programs like your shipping software. It can manage multiple currencies, it can be multilingual, it works with many payment programs and new features and functions are added all the time because there’s a community that collectively and separately works to improve this evolving program.
There are several options here. You may choose to buy a solution, use a turnkey open source e-commerce solution or you can start from scratch yourself with something like OSCommerce. Many novice internet online entrepreneurs get started with free tools that they build up to service their needs. Open source software can be a great solution for three reasons.
1. It’s free. Got no money for startup costs? This can be a good DIY solution.
2. It’s customizable so it can be tweaked to meet your specific needs.
3. There’s a huge online community that supports other users of this tool.
The downside to open source solutions
You generally don’t get free 24/7/365 support when you have problems in the open source world. You are at the mercy of the community and the knowledge base. Unless you want to pay for expertise, it can take time to navigate through the information available on the software and trouble shooting your store can be a bit labor intensive.
There are turnkey open source solutions that you can jump into and begin using and then add on your own modules and there are an abundance of online sources and tutorials as well as community forums where you can pose questions and share your expertise as you build it. You may find that your problems are minor and easily fixable. This will depend on many factors including what version of the software you are using, how many different modules you have, outside factors and how complex your store is.
Do you know enough about technology to get started? Anyone can do some dabbling but if you are anxious, you might want to buy a turnkey solution and going it alone might not be the right choice for you.
There are also products out there with the open source mindset but designed to be easier as a point and click solution. Products like Zen Cart claim to be easier to work with for the novice and there are many resources that work with OS Commerce but that allow you the best of both worlds: to dabble on your own and to have support.
In summary, if you want a low cost or free solution and are willing to put time and effort into learning the tool and contributing to the open source community, you can use this to your advantage. Do your homework and look at your technical abilities, your requirements for your online store and your time constraints for troubleshooting, trial and error. It’s a great idea to lurk on some OSCommerce forums before taking the plunge. This can help you determine whether you have the knowledge and desire to use this e-commerce tool.

My techie friends take pride in displaying the latest addition to their list of programs that run on their Linux installation.

Linux people like to claim that directories are really just another type of file. This statement can be misleading. We saw in a previous article that you create a file using a file editor. We will see later in this article how to create a directory.

So just what is a Linux directory? A directory is a collection that may include one or more directories, one or more files, or in fact be empty. You may think of a directory as a computerized file folder or loose-leaf notebook that contains dividers (themselves directories) and pages (files.) Just like a notebook page may not contain a divider, a Linux file may not contain a directory.

Up to now our comments about Linux directories hold for Windows directories as well. Now let’s take a look at some differences between these two systems. First come the naming conventions. Linux always distinguishes between lower-case and upper-case characters in directory names. Microsoft Windows does not. For example, Linux treats pay12june and Pay12june are as two different directories, as different as the directories pay12june and heighho. These directory names were used as file names in the previous article. While Linux does have some reserved directory and file names, in general one cannot tell by the name whether it is a file name or a directory name. So be careful. Linux helps you out here ‘ the ls command that lists the contents of a given directory usually displays files and directories in different colors.

Directories are hierarchical. They resemble a tree or a family tree. But unlike a tree (or Microsoft Windows) Linux has only one root. The root, designated as / lies at the top, rather than at the bottom, of the hierarchy. Right underneath the root directory you will find several subdirectories. For example, the /home directory is a child of / the root directory. The number and names of the first-level subdirectories vary from one version of Linux to another. For example, some Linux distributions include a /root directory while others do not. The /root directory (or subdirectory, both terms are used) is a child of /, the actual root directory.

The /home directory is an important directory. It is divided into subdirectories, one for each user. We like to work with Damn Small Linux, a free version of Linux that runs on the Windows desktop and requires only 50 Megabytes of disk space. Damn Small Linux automatically creates a user called dsl whose home directory is /home/dsl ; a working area essentially reserved for this user. All Linux versions subdivide the /home directory into user subdirectories according to this simple naming convention.

Linux provides several commands to process directories. For example, the mkdir command creates a directory. The rmdir command removes a directory, but in the simplest case only when it is empty. The cd command changes the working directory, the directory in which you are positioned. The pwd (print working directory) command displays (not prints) the working directory. Beginners should run this command often to reduce errors. For example, if you, the dsl user, think that you are positioned in the /home/dsl directory but in fact are positioned in the / directory you won’t be able save your files with a simple command. Why? Because you lack the requisite permission, the subject of our next article.

As I was sitting here, preparing to write this article, my mind wandered back to the day I accidentally wiped out a Windows installation with a Gutsy Gibbon CD. I thought I was in trouble. I had just knocked out my work documents, including various templates I made, along with scanner support, and my Adobe 8.0 suite.
It was at that moment I decided to make a go of it with Linux as my sole operating system. After nearly 2 years of tweaking, making mistakes, fixing those mistakes, and then making even more mistakes, I finally feel qualified to give you advice.
In light of this experience, I now present “11 Crucial Things An Ubuntu Newbie Should Know”.
Commands
1. ps -A: One of the reasons I hated Windows so much was the task manager. When a program would hang, you’d have to open task manager, tell it to kill the program, and wait 5 minutes for the system to kill the application, All the while, it would bog down the processor, hog memory, and be an overall nuisance. 50% of the time, you would have to restart the computer to get the process to clear.
Not so in Ubuntu/Linux. All you have to kill a program is open the terminal, and type “ps -A”. This will pull up a list of all the processes currently running, with the name of the program, along with a 4-5 digit number next to it. Then, type “kill -9 PN” (PN should be substituted with the actual Process Number), and hit enter. This will kill the app, no questions asked. It will not ask you any questions, or give you any excuses. That program is now dead, until the time you decide to resurrect it. This will not work with things like Apache, or other process daemons. If you’re not sure, just try to kill it. If it doesn’t die, then it is probably a daemon. You will have to find the actual documentation to stop the daemon.
Bonus tip: In Ubuntu (Gutsy and later), the command to stop Apache is: sudo /etc/init.d/apache2 stop To restart: sudo /etc/init.d/apache2 start
2. gksudo nautilus: Nautilus is the GUI-based file browser for Gnome, which is the default window manager for Ubuntu. If you are not used to the command line, this command will save you hours when it comes to file operations. Well, it will only save you hours for things that have to be done as root. Things like special system configuration, and other things where you need upgraded privileges will be much faster when you use this command.
Just open the terminal, type “gksudo nautilus”, enter your password, and magically you can do anything you want. For faster access, right click the Desktop, select “create launcher”, enter “gksudo nautilus” as the command. You can now click the shortcut on your Desktop, rather than opening the terminal and entering a command each time you need access to Nautilus.
3. dmesg: If you have managed to really mess something up, or are having trouble getting things to work, you may need someone with greater experience to take a look. Typing “dmesg” in your terminal window will call up all the messages from your system kernel. Copy and paste this into a text document, attach it to an email, and let a true expert get a look at what is going on with your hardware.
Upgrades:
4. Ubuntu’s package manager, Synaptic, is a GUI front-end for Aptitude. What you don’t know is that Synaptic is set to run in what could be called “safe-mode”. It will not go get the latest and greatest versions of the software you are running. It will get the last (often 6 months older) version of the software you want to run. You can upgrades faster by enabling optional software repositories.
To do this, open Synaptic (System > Administration > Synaptic Package Manager), then select Settings > Repositories. Once you are in the repositories window, select the “Updates” tab. The Ubuntu “security” and “recommended updates” repository have already been selected. To get the newer stuff, you need to check “backports” and “proposed” software. Apply, and reload. This should get most of your software up to date, along with the kernel.
5. The kernel: While having the latest and greatest stable kernel can improve system performance, it can also break little fixes you have made along the way. An example: I had gone through the painstaking process of editing some configuration files to get my webcam to work. The last kernel update overwrote the changes I had made, and in the process, disabled my webcam. This can get irritating, but eventually a kernel release might fix an issue on its own, so I guess it is an ok, if not completely lossless tradeoff.
6. Upgrading to the newest version of Ubuntu: Don’t do it right away. Always give a new version at least two months in regular use before you decide to upgrade. I have tried to upgrade for 3 releases now, in the first two weeks of availability for the upgrade. Each time, there has been a major failure, mostly in the area of graphics and sound. If your release is stable, there is no reason to upgrade right away, other than a few minor changes in speed and stability. You forfeit these if you upgrade on the first day of a new release. You have been warned.
Got Help?:
7. You can Google it: If you haven’t googled it, do not trounce into a forum and ask the question. People are nice, but they really can’t stand laziness. If you have searched, and can’t find it, it may be a more advanced question that really needs more expert analysis.
Here’s the search formula that reaps the best rewards for me: [manufacturer] [model] [problem] [ubuntu distribution]…(e.g. sony vaio webcam installation hardy). You can vary this formula a little bit, as sometimes it takes a few searches to get the hang of it. The one thing that you should not change is having your version of the distribution in the search. The reason is that fixes, and places where applications install can be different depending on the version you are using. This will ensure that you receive the best solution possible.
8. The Forums: Most of the time, Googling the problem will send you to the Ubuntu forums. Get a user name, log in, and be respectful. Be sure you try everything they tell you to before griping that it won’t work. The help and advice is free, and usually very helpful in nature.
9. Launchpad: This is a bug reporting service that Ubuntu users use to get bugs and various other problems fixed. You can reach the project at https://launchpad.net/ubuntu . Once you get there, click on report a bug, and follow the instructions. Be sure the problem has not been reported already, as they will ask. Provide as much information about the incident as possible. They will keep you posted on the progress as far as the problem being resolved, and assign a priority rating based on the severity of the problem. I’ve had to use it 2 or 3 times. Even the minor problems have been resolved in 2-3 weeks.
10. Don’t Be Afraid To Break It
This is the most important rule. This ain’t your Granny’s china. Stuff will break, you will be the one to break it. You will also be the one fixing it, along with your friend Google. Be patient, be persistent, and walk away for a bit if the solution just won’t come. Vindication will come, and when the fix is done properly, or you changed a variable that caused performance to increase, there will a mountaintop rush. Chances are, your significant other won’t care, but that won’t matter. Feel free to prance around in your boxers, and act like you just won the Nobel Prize.
11. Everything in Windows can be replaced with Open Source software: Really, it can. It takes a little time to find it, but when you do, a whole new world will open up. You’ll start to see how things work better than you expected. Things will play that would not on Windows, you’ll be able to open every attachment you ever wanted to. Productivity will increase, thereby giving you more time to make your system work faster, and work on your own open source program.
I can’t include everything I’ve learned over the past two years here. There are some other articles that I have written on software packages, and the pros and cons of each. Just google my name and iSnare to get a full list of what I have written on the subject. In conclusion, have fun with Ubuntu, share your knowledge with others, and fear God. Seriously.
That’s all the advice I have for you.

Of course if you are used to Microsoft Windows you are familiar with the concept of files. This familiarity means you won’t have to start from zero to learn about Linux files. However, you will have to relearn several concepts and techniques to work with files in the Linux environment, whether using Damn Small Linux or other versions. You can do several great things with Linux files that you can’t do easily or at all under Windows. This could be just one more reason to switch from Windows to Linux.

Files have unique names. This rule is not as simple as it may seem. There is no conflict between a hard disk file named pay12june and a file named pay12june on your removable USB flash drive. In fact, be sure to backup all your important files. Don’t worry if your hard drive file is erased or becomes corrupted and illegible, simply access the one on your flash drive. You could also have two files named pay12june on your hard drive in different directories. Directories, collections of directories and files, will be discussed in the next article in this series.

Linux distinguishes between lower-case and upper-case characters in file names. Microsoft Windows does not. For example, Linux treats pay12june and Pay12june as two different files, as different as pay12june and heighho. Windows users will have to adapt to this major difference. Even though I am a Linux fan I don’t see any advantage in the Linux way of naming files. Maybe I have spent too much time in the Windows environment.

File names should be relatively short. The allowed maximum is 255 characters but working with long file names is no fun and in fact is asking for trouble. Linux file names may not contain the character / which has a special meaning. To avoid misunderstanding don’t include special characters such as $ and & in your file names. Doing so could cause confusion and lead to hard-to-find errors. For the same reason don’t call your files by special Linux names such as etc.

Linux sometimes applies file extensions; common examples include .c to indicate a C-language program and .htm or .html to indicate one type of web page. Savvy Linux users often avoid coding the file extension but rely on the file directory to indicate the file type. Don’t give a Linux file a misleading file extension.

Use an editor to create or modify a text file. The old fashioned vi editor has been replaced by more powerful, user-friendly editors. Most versions of Linux come with several editors. Damn Small Linux, a popular version that runs under Windows, includes several editors such as Beaver that come quite close to being intuitive.

Linux provides an enormous variety of commands for processing files. Many of these commands are mnemonic; for example the command cp is used to copy files. Many commands include a wide variety of options. Consider the ls command, somewhat similar to the DIR command in the Windows environment. This seemingly simple command is quite rich and offers dozens and dozens of options many of which have no equivalent in the Windows environment.

Linux commands can be thought of as verbs. Just like most English sentences include more than a verb (go, jump) complete Linux commands contain the command itself and one or more objects. To copy a file you not only need to specify cp but also What and Where. For example, the command cp pay12june backuparea means copy the pay12june file into the backuparea directory.

Linux syntax (grammar rules) is quite strict and does take time to learn. But mastering Linux and associated technologies can lead to employment. The next step is mastering Linux directories.

If you have any involvement with Information Technology, you’re probably already familiar with Linux as a server operating system. Indeed, for many applications Linux is an accepted and even preferred platform. Google has built and is expanding one of the world’s largest cluster of Linux servers to host its pervasive search engine system. Major hardware vendors, including IBM and Hewlett-Packard, sell servers preloaded with Linux and provide premium support for the operating system. Oracle is the largest commercial database running on Linux with more than 80% market share. Successful commercial applications like VMware ESX are built on Linux foundations. And many of the largest Internet hosting providers run on Linux.

On the other hand, if your computer experience is limited to your own home PC, you may never have even heard of Linux and may be wondering what all the fuss is about. If that’s the case, listen up because Linux may be coming to a desktop near you!What is Linux?

Simply put, Linux is a computer operating system like the Mac OS X or Microsoft Windows. The difference is that Linux is open source; anyone can view, modify, and redistribute the underlying code. Further, while OS X is designed to run only on Apple hardware, and while Windows runs primarily on x86 processors from Intel and AMD, there are many distributions or flavors of Linux, compiled to run on a wide array of hardware, everything from high-end corporate servers and mainframes, to home PC’s, to cell phones.

Linux began as a pet project of a Finnish university student, Linus Torvalds, in 1991 as an alternative to the server operating system Unix. He made it freely available to anyone who wished to modify it and it was quickly adopted and grew. Still, it remained primarily a server-based system. Few home users would have chosen its complex command-line interface over the comfortable and easy-to-use point-and-click GUI of the Macintosh or Windows.

However, Linux now also sports a graphical front-end and a plethora of user-friendly applications.Going GUI

Since Linux is all about choice, it’s not surprising that there are a number of graphical environments available. The two most popular that come preloaded on many distributions targeted for desktop or workstation use are Gnome and KDE. Both offer features home users have come to expect: menus, icons from which to launch applications and documents, desktop wallpaper, screen savers, trash icons, and the like.

Connecting to printers is a simple process of selecting the printer type from a menu and telling the system where to find it, either on a local port or a network queue. To print from most applications simply select File, Print. No surprises there.

Sharing folders is equally simple and relies upon standard protocols that interface well with Macintosh and Windows systems.

For security, you can create multiple user accounts; each user gets their own desktop they can customize as they wish. There’s also a built-in firewall to protect you from Internet intruders.

Of course, most people are more interested in the applications they can run, rather than the underlying operating system. Here, Linux is in no way deprived.Applications

For browsing the Internet, there’s Mozilla’s Firefox and Konqueror. For e-mail there’s Thunderbird and Evolution. The popular OpenOffice.org suite provides typical office functionality including word processing, spreadsheet, database, drawing, and presentations. The Gimp and Inkscape offer advanced graphics capabilities. And there’s a variety of utilities for burning CDs and DVDs, listening to music, watching videos, and chatting via services like AOL’s Instant Messenger.

This list is by no means complete. There are thousands of open source applications for Linux; you’d be hard-pressed not to find one that could do what you need. But there are also many commercial applications available.Drawbacks

If Linux offers so much of the same functionality as Windows, why isn’t it more widely used? Why do many home and corporate users reject it?

Microsoft Windows, while it has many faults, has become so widespread in its use as to be nearly ubiquitous. It has become the de facto standard by which other systems are measured. For those people already familiar with and comfortable with Windows, anything else is a step back, even if it is faster, more intuitive, more stable, and more secure.

Also, it must be admitted, there are still situations where you may need to venture into the cryptic world of the Linux command shell. For those used to living with a mouse in one hand, typing commands like awk and grep at a flashing cursor is unacceptable.

And, while there are enough applications to satisfy all but the most demanding of users, there are a few notable exceptions. Microsoft Office is not available on Linux, and likely never will be. Adobe Photoshop is also missing. In both cases, nearly all of the functionality these two giants provide is available in other applications, but for some die hards, that’s not good enough. While there are ways of running some Windows applications on Linux, they’re not usually as fast or as stable — or as easy to implement — as native Linux applications.

The situation is even dimmer for games. While the console market — PlayStation, Nintendo, and Xbox — is growing, the PC and Mac game market is shrinking. The commercial Linux game market is even smaller. Oh, there are plenty of games for Linux, but most are modest efforts, with few of the heavy hitters widely available on other platforms. Those that have been ported to Linux are not always fully supported — if they’re supported at all — by the original producer. For example, while you can purchase Quake 4 for Linux, don’t expect id Software to help you get it running, a task not for neophytes or those who shy away from the command line.Vendors

Despite any apparent drawbacks, some major vendors are actively promoting Linux on the desktop. Novell now offers the SUSE Linux Enterprise Desktop, while Red Hat offers Enterprise Linux WS, both targeted at corporations. Since users in this environment are likely to have a fixed set of applications without a heavy gaming need, Linux is often ideal. And a number of organizations are taking advantage of the potential savings offered by these open source options. Governments especially, under scrutiny for how they handle the public purse, are often quick to make the move. Among them are the cities of Largo, Florida, USA; Bristol, UK; and Bergen, Norway. They have each made their taxpayers happy with significant savings over the closed source, proprietary systems they used to use.Choices

If you’re a heavy gamer, then you’ll probably want to stick with Windows or a dedicated console. If your focus is advanced graphics and video editing, then Linux may be an option, if you’re willing to give up certain commercial applications. Otherwise, you’d be better off with a Macintosh. If you’re just surfing the Internet, sending e-mail, writing letters, and editing spreadsheets, then Linux and the open source software that comes with many distributions will do everything you need.

On the other hand, if you don’t want to ever see a command line or edit configuration files by hand, then Linux probably isn’t for you just yet. But it may be soon.