Linux is a free, UNIX work-alike designed for Intel processors on PC architecture machines. Linux is not UNIX, as UNIX is a copyrighted piece of Aware that demands license fees when any part of its source code is used. Linux was written from scratch to avoid license fees entirely, although the operation of the Linux operating system is based entirely on UNIX. It shares UNIX’s command set and look-and-feel, so if you know either UNIX or Linux, you know the other, too.
Linux supports a wide range of software, from TeX (a text formatting language) to X (a graphical user interface) to the GNU C/C++ compilers to TCP/IP networking. Linux is also compliant with the POSIX.1 standard, so porting applications between Linux and UNIX systems is a snap.
New users of UNIX and Linux may be a bit intimidated by the size and apparent complexity of the system before them. There are many good books on using UNIX out there, for all levels of expertise ranging from novice to expert.
However, few (if any) of these books cover, specifically, the topic of using Linux. Although 95 percent of using Linux is exactly like using other UNIX systems, the most straightforward way to get going on your new system is with a book tailored for Linux.
Types of Linux:
Following are the main types of Linux which are available:
The various distribution types in Linux.
The types of disk sets for each distribution.
Which distribution sets are important for you
How to look for files on the CD-ROM.
How to get Linux from FTP sites.
How to get Linux from BBS sites.
How to find FTP sites where you can get Linux updates
Linux Distribution:
Several versions of Linux are available, depending on which CD-ROM or FTP site you visit. You can change kernel versions by obtaining the source code for a new release, compiling it, and replacing your existing kernel. You may find several CD-ROM distributions available at your local reseller. Info Magic’s Slack ware release, for example, comes on Your CD-ROMs and bears the name Linux Developer’s Resource. In addition to the complete Linux system, it includes source code, FTP archives, full documentation, several extension products, and demonstration software of commercial applications (including WordPerfect)
Starting Linux:
Starting the Linux system can be as simple as turning on the power switch of your PC. If Linux is configured to auto load, Linux will be up and running after a few seconds. Few systems are set up to run only Linux, though, and even fewer have it boot automatically when the power is turned on. Although automatic startup is convenient, many Linux users prefer to be able to choose which operating system to boot into (if other operating systems are loaded on the system) or to change the . level of access to Linux. You can start a Linux system by using a boot floppy disk or using LILO in one of several configurations.