Unix, Linux, and variants

Unix ABCs
Linux ABCs
MS-DOS vs. Linux / Unix
Unix commands
Unix Top 10 commands
Unix Shortcuts
Linux variants
Unix variants
Unix / Linux history
Unix / Linux tips
Unix / Linux links
Linux / Unix news
Linux Q&A
nix ABCs
Unix, which is not an acronym, was developed by some of the members of the Multics team at the bell labs starting in the late 1960's by many of the same people who helped create the C programming language. The Unix today, however, is not just the work of a couple of programmers. Many other organizations, institutes and various other individuals contributed significant additions to the system we now know today.
See additional Unix information and variants and information on the Unix variants page.
Linux ABCs
Developed by Linus Torvalds and further elaborated by a number of developers throughout the world, Linux (lee'nuhks/ or /li'nuks/,_not_/li:'nuhks) is a freely available multitasking and multiuser operating system. From the outset, Linux was placed under General Public License (GPL). The system can be distributed, used and expanded free of charge. In this way, developers have access to all the source codes, thus being able to integrate new functions easily or to find and eliminate programming bugs quickly. Thereby drivers for new adapters (SCSI controller, graphics cards, etc.) can be integrated very rapidly.
See additional Linux information and variants and information on the Linux variants page.
MS-DOS vs. Linux / Unix
If you are able to navigate using MS-DOS, you should be able to quickly pick up on the navigation of Linux and Unix. In the below chart is a listing of common MS-DOS commands with their Linux / Unix counterpart.

MS-DOS	Linux / Unix
attrib	chmod
backup	tar
dir	ls
cls	clear
copy	cp
del	rm
deltree	rm -R rmdir
edit	vi pico
format	fdformat mount umount
move / rename	mv
type	less <file>
cd	cd chdir
more < file	more file
md	mkdir
win	startx

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