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difference between unix & linux

sam liya
Ranch Hand

Joined: Nov 25, 2008
Posts: 1161
what is the difference between unix & linux?
Pat Farrell
Rancher

Joined: Aug 11, 2007
Posts: 4659
    
    5

Unix used to be trademarked AT&T and has a long history going back to the 1970s when Kernigan and Ritche and others invented it at Bell Labs. See http://en.wikipedia.org/wiki/Unix

Linux was written by Linus Torvalds, see http://en.wikipedia.org/wiki/Linux

Some of the GNU and/or Free Software foundation folks will say that Linus only wrote the kernel and the rest is really GNU code (grep, vi, ls, etc.). But today, Linux is a lot more than the kernel and some shell commands.

One could write a book on the differences.

For practical purposes, most desktop, laptop and the vast majority of servers run Linux, not Unix. But to a user, it makes zero difference.

There are still Unix derived systems out there, the various *BSD are notable and are still loved by some folks for their reliability.
jhessica valdez
Greenhorn

Joined: Feb 01, 2013
Posts: 5
hai Why linux and unix is important to us?
Pat Farrell
Rancher

Joined: Aug 11, 2007
Posts: 4659
    
    5

jhessica valdez wrote:hai Why linux and unix is important to us?


They are not important to most people. They are not important to a majority of professional developers.

The world has three main commercial operating systems: IBM's mainframe stuff, Windows (XP, Vista, 7, 8, etc.) and OS-X. Many people use them and are very happy.

Linux, Unix, Android, Firefox OS and others are free and open source (to more or less degree) operating systems. This is important to a smaller number of people. In general, you will know if you are one of those who think Linux and Unix are important.
Tim Holloway
Saloon Keeper

Joined: Jun 25, 2001
Posts: 16101
    
  21

Linux is vitally important to Google, Amazon, IBM, Oracle, the New York Stock Exchange and quite a few other major players. All of them use Linux for critical infrastructure and/or as major revenue producers. So does my company, as far as it goes.

Unix is also very important to many large companies, primarily Oracle's Solaris, IBM's AIX, and HP's HP-UX, although in many shops, Unix has been squeezed out by Linux to some degree or other.

Pat had better hope that the BSD crowd doesn't catch him dismissing BSD as an "and others" OS, though. They're a touchy bunch. BSD is a family of open-source Unix implementations. Solaris is a close relative to BSD.


Customer surveys are for companies who didn't pay proper attention to begin with.
Pat Farrell
Rancher

Joined: Aug 11, 2007
Posts: 4659
    
    5

Tim Holloway wrote:Pat had better hope that the BSD crowd doesn't catch him dismissing BSD as an "and others" OS, though. They're a touchy bunch. BSD is a family of open-source Unix implementations. Solaris is a close relative to BSD.


Hey, I said nice things about *BSD, specifically:

There are still Unix derived systems out there, the various *BSD are notable and are still loved by some folks for their reliability.


Some folks even argue that OS-X is part of the BSD tree.
Were Rabbitz
Greenhorn

Joined: Mar 01, 2013
Posts: 2
A fun article here:

50 Places you wouldn't expect uses Linux

Also historically Unix/Linux has had a better uptime/less crashes then Windows severs or OS's.


We use Unix AIX at work and i run Linux Mint at home.

Unix/Linux is harder to learn and use then Windows, but for someone trained to customize them you will find you can do soo much more and have a lot more freedom & reliability. 83% of

According to www.forbes.com & www.linux.com 94% of Supercomputers run Linux/Unix.

Also the gaming industry recently opened up to Linux. Steam gaming client is now in linux, Blizzard announced they are making their first Linux game, and i'ts flooding quickly due to all the free software alternatives you can get.

Majority of Movie studio equipment in the US is also ran on linux machines due to it being supperior for modeling jobs over even MAC's.

Linux is based off of old Unix Style Technnology now it's developed so much it's really it's own monster, but MAC was also developed off Unix Ideas so Applications that are MAC comparable are easily Linux with some adjustments.


Linux has gotten so easy to use that i do everything from Javascripting & 3D modelling, to running our own tomcat sever, to playing DeadSpace 3 & Team Fortress 2.




 
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