What is So Great About Linux

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Leveraging work done on UNIX and GNU projects helped to get Linux up and running quickly. The culture of sharing in the open source community and adoption of a wide array of tools for communicating on the Internet have helped Linux move quickly through infancy and adolescence to become a mature operating system.

The simple commitment to share code is probably the single most powerful contributor to the growth of the open source software movement in general, and Linux in particular. That commitment has also encouraged involvement from the kind of people who are willing to contribute back to that community in all kinds of ways. The willingness of Linus to incorporate code from others in the Linux kernel has also been critical to the success of Linux. The following sections characterize Linux and the communities that support it.

Features in Linux
If you have not used Linux before, you should expect a few things to be different from using other operating systems. Here is a brief list of some Linux features that you might find cool:

No constant rebooting—Uptime is valued as a matter of pride (remember, Linux and other UNIX systems are most often used as servers, which are expected to, and do, stay up 24/7/365). After the original installation, you can install or remove most software without having to reboot your computer.

Start/stop services without interrupting others—You can start and stop individual services (such as Web, file, and e-mail services) without rebooting or even interrupting the work of any other users or features of the computer. In other words, you should not have to reboot your computer every time someone sneezes. (Installing a new kernel is just about the only reason you need to reboot.)

Portable software—You can usually change to another Linux, UNIX, or BSD system and still use the exact same software! Most open source software projects were created to run on any UNIX-like system and many also run on Windows systems, if you need them to. If it won’t run where you want it to, chances are that you, or someone you hire, can port it to the computer you want. (Porting refers to modifying an application or driver so it works in a different computer architecture or operating system.)

Downloadable applications—If the applications you want are not delivered with your version of Linux, you can often download and install them with a single command, using tools such as apt, urpmi, and yum.

No settings hidden in code or registries—Once you learn your way around Linux, you’ll find that (given the right permissions on your computer) most configuration is done in plain text files that are easy to find and change. Because Linux is based on openness, nothing is hidden from you. Even the source code, for GPL-covered software, is available for your review.

Mature desktop—The X Window System (providing the framework for your Linux desktop) has been around longer than Microsoft Windows. The KDE and GNOME desktop environments provide graphical interfaces (windows, menus, icons, and so forth) that rival those on Microsoft systems. Ease-of-use problems with Linux systems are rapidly evaporating.

Freedom—Linux, in its most basic form, has no corporate agenda or bottom line to meet. You are free to choose the Linux distribution that suits you, look at the code that runs the system, add and remove any software you like, and make your computer do what you want it to do. Linux runs on everything from supercomputers to cell phones and everything in between. Many countries are rediscovering their freedom of choice and making the switch at government and educational levels. France, Germany, Korea, and India are just a few that have taken notice of Linux. The list continues to grow.

There are some aspects of Linux that make it hard for some new users to get started. One is that Linux is typically set up to be secure by default, so you need to adjust to using an administrative login (root) to make most changes that affect the whole computer system. Although this can be a bit inconvenient, trust me, it makes your computer safer than just letting anyone do anything. This model was built around a true multiuser system. You can set up logins for everyone who uses your Linux computer, and you (and others) can customize your environment however you see fit without affecting anyone else’s settings.

For the same reason, many services are off by default, so you need to turn them on and do at least minimal configuration to get them going. For someone who is used to Windows, Linux can be difficult just because it is different from Windows.

Source of Information : Linux Bible 2008 Edition

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