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Difference Between Linux and UNIX

What is the difference between Linux and UNIX operating systems?

UNIX is copyrighted name only big companies are allowed to use the UNIX copyright and name, so IBM AIX and Sun Solaris and HP-UX all are UNIX operating systems. The Open Group holds the UNIX trademark in trust for the industry, and manages the UNIX trademark licensing program.

Most UNIX systems are commercial in nature.

Linux is a UNIX Clone

But if you consider Portable Operating System Interface (POSIX) standards then Linux can be considered as UNIX. To quote from Official Linux kernel README file:

Linux is a Unix clone written from scratch by Linus Torvalds with assistance from a loosely-knit team of hackers across the Net. It aims towards POSIX compliance.

However, “Open Group” do not approve of the construction “Unix-like”, and consider it misuse of their UNIX trademark.

Linux Is Just a Kernel

Linux is just a kernel. All Linux distributions includes GUI system + GNU utilities (such as cp, mv, ls,date, bash etc) + installation & management tools + GNU c/c++ Compilers + Editors (vi) + and various applications (such as OpenOffice, Firefox). However, most UNIX operating systems are considered as a complete operating system as everything come from a single source or vendor.

As I said earlier Linux is just a kernel and Linux distribution makes it complete usable operating systems by adding various applications. Most UNIX operating systems comes with A-Z programs such as editor, compilers etc. For example HP-UX or Solaris comes with A-Z programs.

License and cost

Linux is Free (as in beer [freedom]). You can download it from the Internet or redistribute it under GNU licenses. You will see the best community support for Linux. Most UNIX like operating systems are not free (but this is changing fast, for example OpenSolaris UNIX). However, some Linux distributions such as Redhat / Novell provides additional Linux support, consultancy, bug fixing, and training for additional fees.


Linux is considered as most user friendly UNIX like operating systems. It makes it easy to install sound card, flash players, and other desktop goodies. However, Apple OS X is most popular UNIX operating system for desktop usage.

Security Firewall Software

Linux comes with open source netfilter/iptables based firewall tool to protect your server and desktop from the crackers and hackers. UNIX operating systems comes with its own firewall product (for example Solaris UNIX comes with ipfilter based firewall) or you need to purchase a 3rd party software such as Checkpoint UNIX firewall.

Backup and Recovery Software

UNIX and Linux comes with different set of tools for backing up data to tape and other backup media. However, both of them share some common tools such as tar, dump/restore, and cpio etc.

File Systems

  • Linux by default supports and use ext3 or ext4 file systems.
  • UNIX comes with various file systems such as jfs, gpfs (AIX), jfs, gpfs (HP-UX), jfs, gpfs (Solaris).

System Administration Tools

  1. UNIX comes with its own tools such as SAM on HP-UX.
  2. Suse Linux comes with Yast
  3. Redhat Linux comes with its own gui tools called redhat-config-*.

However, editing text config file and typing commands are most popular options for sys admin work under UNIX and Linux.

System Startup Scripts

Almost every version of UNIX and Linux comes with system initialization script but they are located in different directories:

  1. HP-UX – /sbin/init.d
  2. AIX – /etc/rc.d/init.d
  3. Linux – /etc/init.d

End User Perspective

The differences are not that big for the average end user. They will use the same shell (e.g. bash or ksh) and other development tools such as Perl or Eclipse development tool.

System Administrator Perspective

Again, the differences are not that big for the system administrator. However, you may notice various differences while performing the following operations:

  1. Software installation procedure
  2. Hardware device names
  3. Various admin commands or utilities
  4. Software RAID devices and mirroring
  5. Logical volume management
  6. Package management
  7. Patch management

UNIX Operating System Names

A few popular names:

  1. HP-UX
  2. IBM AIX
  3. Sun Solairs
  4. Mac OS X
  5. IRIX

Linux Distribution (Operating System) Names

A few popular names:

  1. Redhat Enterprise Linux
  2. Fedora Linux
  3. Debian Linux
  4. Suse Enterprise Linux
  5. Ubuntu Linux

Common Things Between Linux & UNIX

Both share many common applications such as:

  1. GUI, file, and windows managers (KDE, Gnome)
  2. Shells (ksh, csh, bash)
  3. Various office applications such as OpenOffice.org
  4. Development tools (perl, php, python, GNU c/c++ compilers)
  5. Posix interface

A Sample UNIX Desktop Screenshot

UNIX Desktop - IRIX 6.5 Desktop

Fig.01: UNIX Desktop - IRIX 6.5 Desktop

A Sample Linux Desktop Screenshot

Linux KDE desktop environment

Fig.02: Linux KDE desktop environment

UNIX and Linux Hardware

Commercial UNIX hardware has more advanced initial boot options such as:

  • Decide how to boot
  • Check system health
  • Set hardware parameters etc

The BIOS that is standard in PCs which is used by Linux has few, of these features. UNIX hardware or servers are pretty expensive as compare to Linux server systems.

Further readings:

Following documents or URL should help anyone to get more idea:

(Image credit IRIX and KDE wikipedia articles)

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{ 312 comments… add one }
  • mandar December 26, 2007, 6:05 pm

    best & knowledgeble information

    • kishore babu October 10, 2011, 11:53 am

      Marvelous , really it is useful explanation

      Thank you

      • andy January 12, 2012, 2:53 am

        it is very ossume. Thanks. It help me lot.

        • mani January 20, 2012, 4:46 am

          i cant understand

          • hasini January 24, 2012, 11:48 am

            The given information was clear to understand but i think today only you known Linux & UNIX thats y its not understandable for u.

            • Emin January 31, 2017, 11:34 am


    • vivek March 4, 2012, 7:08 pm

      thks its valuable information

    • bimboBigInvestmentBank May 19, 2014, 10:14 pm

      That still doesn’t help the bimbo recruiter from the big investment bank on the phone “Sir, Sir my managers are very specific they want Unix type people-SIR, Sir I don’t think they want a Red Hat”

    • TOTBS August 3, 2014, 5:13 pm

      64:9E:F3:66:9A:E1 this mac address is for everyone!

  • xc September 22, 2008, 2:46 pm

    Linux is Free (as in beer [freedom])
    shouldn’t it be
    Linux is Free (as in spreech [freedom])
    Linux is Free (as in beer [price])?

    • alena July 3, 2013, 1:53 pm

      it wll b like “as in speech’ (its abt freedom .,,,,)

      • Sgt.Potato May 13, 2014, 2:29 pm

        sudo apt-get install BEER.deb :D

  • Jules September 25, 2008, 10:28 pm

    Yes, you are absolutely correct. Free as in free beer means free of charge. Free as in speech indicates freedom to use, modify and redistribute as you wish, (freedom).

  • ajit kumar shukla March 7, 2009, 7:08 am

    Unix and linux both are multiuser operating system. Unix operating based on CUI(Character User Interface) and does not support pointing device, where as in linux opearating system; adding new features XWindows in Unix operating system and it is based on GUI(Graphical User Interface) i.e., it is like as DOS and Windows

    • munirajchoopa April 19, 2010, 12:05 pm

      is linux gui r cui

      • bc February 17, 2011, 8:18 am

        linux is GUI

        • LOKESH R June 29, 2011, 10:58 am


        • dilip sahu October 10, 2011, 5:53 pm

          both gui and cui as well

      • naresh kumar sharma March 16, 2011, 4:28 am

        both of them is gui

      • hasini January 24, 2012, 11:50 am

        Linux has both GUI & CUI

        • hasini January 24, 2012, 11:51 am

          sorry that’s C L I (command line interface) not CUI

          • shiv prasad patel January 25, 2012, 6:20 pm

            yes, linux is GUI (Graphical User Interface) and
            CLI( Command Line Interface)

            • tanmoy March 14, 2012, 4:40 am

              Linux has both CLI and GUI (via X window start it by cmd # startx) from cli;
              On the Other hand Unix is purely CLI, however many distribution has the GUI feature now. BSd unix for exmpl.

              • Ian January 26, 2017, 5:29 pm

                I’m not sure where so much misinformation is coming from, but this bit about GUI vs CUI is just bunk. The X Window System including its use of mouse (“pointing device”) was developed on real UNIX systems 3/4 of a decade (1984 vs 1991) before Linux was even invented. All modern Unix systems support GUI as well as CLI interfaces, and have since before most of you were born. Please check on Wikipedia before blindly repeating false information.

      • vikram May 4, 2012, 10:19 am

        linux is GUI (graphical user intterface) and unix is CUI (charector user interface ) thats why it does not support pointing device…….

      • Bhargavi June 30, 2014, 5:50 pm

        Linux supports both GUI and CLI

    • switch87 September 4, 2014, 6:20 pm

      linux and unix ar standard cli. they both can run almost the same software, so the both suport gui. mac os is unix and has gui suport. most linux distributions have the possibility to use a bsd (=unix) kernel with the same gui you use with the linux kernel.

  • Frank April 4, 2009, 1:11 pm

    You are doing nice thing here.

    Thank you so much

  • michael July 1, 2009, 2:04 pm

    major diffrent GUI and Kernal

  • kirti August 21, 2009, 9:43 am

    clear n knowledgeble information

  • Muhammed Shabreen September 8, 2009, 1:04 am

    Thank you so much for the information.. its clear nd knwldgable..”:-) thank u

    • sonika January 5, 2012, 6:58 pm

      thanks..its easy to understand.

  • snehal September 8, 2009, 7:58 am

    Thanks for giving exact differences.Beacase I am searching for exact differences which I get cleared

  • bhavani October 1, 2009, 11:54 pm

    differences were clear to maximum extent

  • Prince October 12, 2009, 2:18 pm

    Unix works on large mainframe computes but linux works on even PC

  • mayur October 29, 2009, 10:09 am

    it was nice explanation … it is not huge but some little bit …

  • 5star prathyusha November 4, 2009, 6:57 am

    thanq so much
    it is very much use to me ……..

  • vivek November 16, 2009, 11:40 am

    thank u for the valuable info’

  • swathi November 25, 2009, 10:48 am

    what is relation b/w linux&unix

    • jainth October 22, 2010, 1:58 pm

      Both share many common applications such as:

      GUI, file, and windows managers (KDE, Gnome)
      Shells (ksh, csh, bash)
      Various office applications such as OpenOffice.org
      Development tools (perl, php, python, GNU c/c++ compilers)
      Posix interface

    • mo.shuaib December 26, 2010, 5:37 pm

      its a very simple way to find

    • sundar December 23, 2011, 4:47 am

      ya good…linux is the clone of the unix

    • vikram May 4, 2012, 10:09 am

      linux is open source and unix is cloused source os it mean linux r freely available user can upgrade or invent commands n so many things r did but as per unix it leaglly perchase……there is no doubt that linux is clone of unix if u r able to handle linux so u must hv well handled unix also….if u have cartain doubt then mail me swati

      • inamul October 4, 2013, 2:31 am

        Hi vikram

        1. if i learn linux, then can i handle all the things in unix
        2. I installed ubuntu, can i install unix as well for learning purpose,

  • stephen December 8, 2009, 8:50 am

    what is linux&unix

    • shreeharsha February 22, 2012, 3:41 am

      LInux is as open source OS and more secured compared to windows.Unix is also same

  • Thiru December 8, 2009, 9:38 am


    I gained some valuable knowledge here!!!
    But still confused about the origin of these two!!!

    I m new to linux using Ubuntu 9.10 >>>
    Pls give me some tricks and tips for my Os…

  • srinivasa reddy December 15, 2009, 8:45 am

    I con’t understand difference between unix and linux why because two operating systems are gui are not?

    • chandra mohan September 24, 2011, 5:01 am

      both are gui as the sceen shot in the above make you clear

  • srinivasa reddy December 15, 2009, 8:45 am

    i con’t understand

    • lata May 1, 2011, 7:31 pm

      nyc & clear explanation……….

  • Sunil Jain December 21, 2009, 7:30 pm

    Thank you very much :) :) Vivek :)
    I have started off with UNIX and i wanted to know the differences b/w UNIX and LINUX , so this post was a nice knowledge for me :) :) :)

  • arpit December 29, 2009, 10:35 am

    thks very educative……

    clrearly mention imp… points..

  • abhinav January 3, 2010, 4:42 pm

    I was really simple and easily understandable.

  • ilayaa.., January 9, 2010, 9:03 am

    its very useful…,

  • Abdulwahab January 10, 2010, 7:50 pm


    Very interesting……

  • asif January 12, 2010, 8:45 pm

    ya i like it :-)

  • rohidas January 17, 2010, 5:34 pm


    I gained some valuable knowledge here!!!

  • Sameer S. K. January 27, 2010, 5:15 am

    Thanks, dude…!
    Needed the info as I’ve just syarted studying these issues…!
    Thanks again. :)

  • shaila January 27, 2010, 9:48 am

    thanks a lot…

  • gururaj February 7, 2010, 5:56 pm

    hw to copy files from one user to another user?

  • deepika verma February 8, 2010, 10:02 am

    information provides good but if the difference is given diagramaticly it will be more helpfull.

    thank ‘s.
    from N.W.I.E.T.(Dhudike)

  • pankaj February 10, 2010, 5:16 pm

    thanks to give information

    • PRIYA December 24, 2010, 8:12 am

      please u give some more differences b/w unix nd linux.
      Thesse information is good bt not sufficient.

      • souvik April 24, 2011, 9:28 am

        @priya, try using both u will find the differences urself…

        • surya May 3, 2011, 3:06 pm

          me too i m thinking the same tought.. on thing i want to get confirmed these are the OS’s MS, Mac, Apple, Linux. thats it i know. so wether UNIX And LINUX are same or different OS’s.

      • prabhat kuwar January 5, 2012, 9:42 am

        it is verry sucsses full o.s,which is widly used in networking system

  • SHYLA February 15, 2010, 7:12 pm

    ya,,,, Definitely its useful but even u have to say about kernel and shell etc.. like that……….

  • vikas jaiswal February 16, 2010, 1:15 pm

    very thanks dude

  • sachin February 18, 2010, 1:51 pm

    nice info….good job…thx

  • Deepak kumar February 21, 2010, 5:45 pm

    Unix and linux both operating system is based in the multiuser/multing environment. and kernal
    based operating system. unix only suport the CUI but linux suport both CUI & GUI.
    basicaly this operating system is used in the network environment. it is very use full for security point of view.

  • Devasundaram February 27, 2010, 4:30 am

    Hi Vivek Gite,

    The Explanations about Group of OSs are under Unix and Linux is very useful for me. I have get good ideas about that. Thanks lot.

    Regards, Deva

  • idlopodia March 1, 2010, 6:09 pm

    I’m so glad
    wellllll done job

  • pradeep kumar pandey March 4, 2010, 8:33 am

    1-unix is CUI whereas linux is GUI
    2-unix has pointer device linux dnthav
    3-unix is property software where as linux is open source
    4-unix is more secure than linux
    5-keranel of unix is in enhace in linux

    • karan August 13, 2010, 9:29 am

      thanks for this information
      but is it right

    • parthiban April 25, 2011, 6:19 am

      this is really an awesome explanation …. thank u so much

  • vishwas reddy March 5, 2010, 4:57 am

    its intersting and knowlegable !!! but how they r originated !!!! and if linux is 4 free than wat is the beneifit of the company and linux is authorised or not ????

    • surya May 3, 2011, 3:09 pm

      this is also a question that has to be raised… more over Linux LTS is for some 18 months to 3 yrs. what about after that. do we need to purchase Original OS Disks or any improvements.

      • vkc August 23, 2011, 8:39 pm

        Linux LTS is supported for 18 months but you can use it indefinitely(or until the os becomes corrupt) which means no updates for software through internet

  • Muhammad Shabeen March 10, 2010, 8:57 am

    It was interesting and useful info. should have more diff. about kernal will be better.

  • Amit Srivastava March 13, 2010, 7:57 am

    It’s so good information about Linux & Unix……!

  • seema bamotra March 17, 2010, 12:36 pm

    please mention d differences diagramatically.

  • Rupali March 18, 2010, 3:51 am

    please explain the difference between Linux & Unix by showing some diagrams or screen shots..

  • Anandlin March 21, 2010, 11:47 am

    This is the best advice between Linux and Unix… Great

  • Anandlin March 21, 2010, 11:48 am

    If you get any more idea between linux and unix please note me the mail..

  • mohan sharama March 30, 2010, 3:40 am

    Thanks for valuable information……..

  • sunny April 5, 2010, 8:09 pm

    thanx……….. a lot 4 this info

    can u plz send me some scripting tips and related commands

    I need it

  • Bhairab Jyoti Handique April 6, 2010, 4:37 am

    Thanks, ll’be very helpful 2 me & others.

  • shan April 9, 2010, 6:20 am

    Thanks for this information , it is really good and very nice concept and easy to understand.

  • kanha (MANIT,MCA) April 18, 2010, 5:51 am


  • rx April 22, 2010, 7:45 am

    what is the difference between linux commands and unix commands.

    • itys May 7, 2010, 2:28 pm

      Many Linux distributions can understand a variety of Unix commands, the commands and the command-line shells are for the most part cross compatible.

    • kv Reddy August 1, 2010, 8:35 pm

      Hi guys n gals ,

      I got some idea from reviews n explanations .

      vreddy ,nj,usa

  • rajashree June 17, 2010, 12:06 pm

    linux operators can understand most of the unix programmes.

  • raj July 3, 2010, 12:53 pm

    What is the major difference between Linux and Unix..?

    • Pravin lalge May 11, 2012, 1:33 pm

      unix doesn’t hv Graphical user interfacewhereas linux hv it………

  • ajay namdev gaurkar July 19, 2010, 5:46 pm

    linux is a best of the opreting system
    linux most impartent in system engineering

  • yaseen July 23, 2010, 6:45 am

    Good way of representation… i got it

  • Sumit Singh August 1, 2010, 11:20 am

    very nice explanation……totally satisfy

  • Nagendra August 9, 2010, 8:25 am

    fully satisfied with the answer……thanxs

  • satyaveer yadav August 9, 2010, 10:40 am

    linux is virousless opreating system it is a good advantag .

  • bhawna August 11, 2010, 8:51 am

    it was very helpful

  • D!VA August 12, 2010, 9:42 am

    wow it wonderfull

  • muthu August 13, 2010, 6:10 am

    very useful for analysis

  • Tbhaskar reddy August 14, 2010, 8:30 am

    I think is it very bright future for linux/unix adminstration

    • jan October 26, 2010, 6:50 am

      explian linux and unix

  • bharat August 19, 2010, 4:43 am

    some usefull info………


  • thangavel August 23, 2010, 11:38 am


  • suresh August 27, 2010, 7:39 am

    majer diffrent unix and linux

  • Harinder August 28, 2010, 3:23 pm

    thanx 4 d info , it realy workd 4 me

  • kiers September 2, 2010, 2:32 am

    Dude. WTF. u missed BSD ! It is unix. are u an expert or not?

  • MK Pallai September 20, 2010, 12:18 pm


    • sid December 21, 2010, 5:20 pm

      to use any windows software on linux(ubuntu), try red wine

      • surya May 3, 2011, 3:11 pm

        i m new to Linux started my experciences with ubuntu. and what is this Red wine.

    • akhila September 2, 2011, 4:35 pm

      to use more softwares we can use redhat

    • vikram May 4, 2012, 10:03 am

      # yum install {package or application name}
      note:ur comp. r must hv in network and ya u can install media player n play a song throughout command also….

  • TITTOO September 20, 2010, 12:20 pm


  • MAHENDRA SINGH October 2, 2010, 12:04 pm


    it was nice


  • sivakumar October 8, 2010, 1:24 pm

    gud and best info

  • Pari October 14, 2010, 2:16 am

    It is awesome it solve my problem to the limit Thanks a lot.

  • jmaz October 21, 2010, 2:26 pm

    very nice information

  • tallestj October 23, 2010, 2:24 pm

    This is the most informative and interesting material I have ever seen on the differences btw Linux and Unix.I was not bored one sec.Thumbs up!!!

  • Ghallab October 31, 2010, 9:44 am

    Thanks for this good comparison

  • Ziaullah Khan November 3, 2010, 6:21 pm

    Excellent Article Thanks buddy for Describing in excellent way.

  • uday December 7, 2010, 2:24 pm

    its a very useful to me……

  • ranjan sharma December 13, 2010, 1:38 pm

    good content

  • Shambhu Verma December 15, 2010, 7:20 am

    Hi, Very Informative information.
    thanks a lot for your effort

  • Mohit Nagpal December 24, 2010, 4:36 pm

    Good Info.

  • mo.shuaib December 26, 2010, 6:08 pm

    any video is available ..for how to operate linux

  • khaled December 28, 2010, 5:28 am

    Very nice information.
    Thanks for share

  • jeet sharma December 30, 2010, 1:50 pm

    thanks its easy to understand!

  • Navazeesh January 11, 2011, 7:50 am

    UNIX is CUI……….But CUI means not character user interface………CUI means command user interface……….Unix is developed on C-language and C is a CUI which is Character user interface(CUI)…….so so many of us think that UNIX also Character user interface but its wrong……..UNIX is Command user interface……….

    • Akila January 20, 2011, 6:43 am

      nice explanation……..

    • gajen[VIT,VELLORE] December 5, 2011, 4:57 pm

      nice explaination

  • venkatarakeshkumar January 18, 2011, 1:27 pm

    its nice.

  • ankur india January 25, 2011, 9:07 am

    it’s gr8 n nice and it must be appriciate

  • Aarti joshi January 27, 2011, 3:38 am

    Very clear ane easily understandable information

  • shanmuga priya.v January 28, 2011, 2:37 pm

    atleast 10 diff b/w linux and unix

  • Darshan February 7, 2011, 10:27 pm

    thank u for this information. This is the perfect information for beginner in this industry.

  • jayaprakash February 9, 2011, 5:22 pm

    outstanding explanation
    it’s very useful to me

  • ANANTH February 10, 2011, 5:46 am

    simple and good!

  • manohar February 11, 2011, 9:08 am

    but little clarity required with updated information

  • sushant February 14, 2011, 11:42 am

    thnx forthis info

  • Eshan Gupta February 17, 2011, 4:56 pm

    Hi all,
    I am little in dilemma condition.I want to do certification in unix……..and i dont know which course is good for me and which is good LINUX or UNIX.please guide me and mail me on eshangupta22@gmail.com..

    Thanks in Advance

  • Pulkit Goyal March 4, 2011, 8:19 am

    Really Useful. Thanks. :)

  • megha vyas March 6, 2011, 4:37 pm

    This info is very useful to me…its clear n easy to understand…

  • Darshan P. Gondhali March 16, 2011, 3:12 pm

    Thanks. Its really valuable for me..Thanks a lot

  • senthil March 21, 2011, 12:45 pm

    which one is better linux or unix even wanted

  • vivek March 28, 2011, 9:49 pm

    nice i satisfy with these materials as you scope between linux and unix.

  • sangita April 11, 2011, 7:37 am

    what is the difference between window os kernel & unix kernel?

  • hemanth April 20, 2011, 2:28 pm

    how to install solaris drivers in vmware workstation(x86)..?
    and where these drivers are available plz gve me any one url
    plz help i fece the problem so many days

  • Vinayak Bhaurkar May 6, 2011, 9:36 am

    why Linux Is a Kernel?

  • Vinayak Bhaurkar May 6, 2011, 9:37 am

    why Linux Is only Kernel?

  • prajakta May 6, 2011, 12:17 pm

    It was a great pleasure to read.
    nice information;it helped me a lot.

  • vinod May 14, 2011, 5:50 am

    thanks……to give such information….ohhhhhhhhhhhhhhhhh

  • aruna kadambala May 17, 2011, 2:35 pm

    good stuff. thanks for posting. really appreciable.good to go.

  • Riya June 18, 2011, 3:47 am

    Very precicsly and accurately defined … thanks a lot

  • aruna kadambala June 20, 2011, 3:05 pm

    ur work is appreciable.

  • gaurav ranjan June 23, 2011, 11:05 am

    nice one…informative.

  • theodory July 8, 2011, 10:31 am

    please i need to know meaning of kernel

    • Kamal Kant Sharma July 12, 2011, 10:08 am

      Kernel is the main component of most computer operating systems; it is a bridge between applications and the actual data processing done at the hardware level.

      The kernel’s responsibilities include managing the system’s resources (the communication between hardware and software components).

  • Sisir July 29, 2011, 9:52 am

    The OS has basically 2 parts 1.Kernel 2.Shell ….. Kernel is the part which deals with the system resources and hardware and shell is the part which deals with the application software. Whenever any OS is designed first its Kernel is designed.The same had happened in case of Linux

  • shubham August 4, 2011, 4:06 am

    its very good information.thank

  • Tonye @ True Vine Productions August 5, 2011, 9:22 am

    Woah… thanks… this info is fueling my knowledge for explaining the real and indepth differences between Macs and Windows… God bless you sir ;)

  • Youcef August 6, 2011, 4:50 pm

    Very helpful information, thank you very much!!!

  • ponmudi August 13, 2011, 6:37 pm

    Really very helpful information!!’
    Thank u!!!

    Keep posting

  • Bhnauchander Cholleti August 25, 2011, 1:17 pm

    It provided me the basic differnces.Its good.

  • vinus September 3, 2011, 5:43 am

    it is very good information.thank you very much

  • harsh September 11, 2011, 6:45 am

    thanks …

  • sushanth September 12, 2011, 12:54 pm

    hey can i install both linux and windows7 os to my pc IS IT SAFE…..to do so…???

  • gopal September 12, 2011, 3:51 pm

    Thanq sooooooooo much……!!!!!!!!

  • Phanikumar.z September 15, 2011, 5:00 am

    it’s understandle and can u provide much more info about this

  • chandra mohan September 24, 2011, 5:03 am

    nice information i got a great stuff by reading this information

  • DINESH PAWAR September 25, 2011, 8:05 am



  • hamid September 29, 2011, 7:38 pm

    linux is upgrade version of unix?

  • Agbaa November 12, 2011, 9:48 am

    it was very helpful

  • pravin kumar November 16, 2011, 6:47 pm

    unix is paid version but linux is unpaid version

  • jay chaudhary November 20, 2011, 5:14 am

    thanks for all informatons

  • Nareshkumar.L November 21, 2011, 12:13 pm

    Am a beginner thank you for all information with clean info.

  • komal December 8, 2011, 9:07 am

    thanks ,it enhanced my basic knowledge! Nice informatiön

  • zahra December 11, 2011, 12:09 pm

    I WANT pictures of unix system.thank u.

  • Ranganath M December 16, 2011, 7:13 am

    This is very nice and easily understood fortmat.
    Nice work.Keep it up.
    Thank U.

  • gowtham December 19, 2011, 3:29 pm

    guys plz suggest me the books/materials to learn this LINUX,
    thanks in advance.

  • Eswaran K December 30, 2011, 4:42 am

    really very useful these tutoriol

  • medma January 2, 2012, 7:07 am

    jhantu explanation indeed….

  • shubham January 6, 2012, 6:07 am

    yeah..great its really good and esily understand , thank for all

  • madhusudhan January 19, 2012, 5:23 am

    hi friends i hv completed my linux course, plz send which books is good to do redhat certification ,if u hv dumps plz send it my mail id

  • Shawn January 19, 2012, 10:09 pm

    Wow…this is a load of FUD about UNIX. It has nothing to do with ONLY big companies.

    Instead UNIX is a trademark that signifies that the OS using it has passed specific tests and conforms the defined UNIX specification to handle interoperability. This is like POSIX which is also administered by The Open Group joinly with IEEE.

    Any OS can become UNIX-certified if the vendor chooses to try and can meet the standard. As far as I know, no Linux vendor (i.e. RedHat) has tried.

  • YEDU January 20, 2012, 4:37 am

    Thank u for giving such a valuable information.

  • MOHAMMED HANEEF January 21, 2012, 7:29 pm

    Wow..Great!nice thing to learn interest..

  • hasini January 24, 2012, 11:45 am

    Really informative site.
    Thanks alot

  • shukla ajay February 4, 2012, 6:51 am

    Linux & UNIX both are server data base multi user software

  • Curious February 24, 2012, 10:17 am

    Can someone explain what “A-Z programs” are? If you google, the sentence
    “Most UNIX operating systems comes with A-Z programs such as editor, compilers etc.”
    is repeated verbatim all over the place, with no explanation. The next sentence won’t clarify much, either:
    “For example HP-UX or Solaris comes with A-Z programs.”

    • nixCraft February 24, 2012, 10:30 am

      Unix comes with all sort of utilities and command bundled from a single vendor such as IBM, HP, SUN/Oracle and so on. The single vendor provides you updates, patches, commands, installer, and management utilities (source #1).

      On other hand, Linux installs userland tools from GNU project (source #1). The installer scripts and management tools are often written by distro maintainers (source #2). Third party apps need to be downloaded and install as required (source #3). Also, you need to add additional repos to install binary software (such as EPEL or debian multimedia source #4).

      Hope this helps!

  • Taylor Sharpe March 16, 2012, 11:33 pm

    It is interesting comparing screen shots of a bland Unix desktop compared to a nicely laid out Linux version. The Mac OS X is Unix certified and clearly has a very elegant and polished User Interface. The comparison between screen shots here implies that Linux desktops are more professional looking. In general that may be true, but not when comparing to the Mac. Being a Mac guy… just had to point that out.

    • Ash September 6, 2012, 9:35 am

      Apple Fag

      • JeffFalkenham October 12, 2012, 10:23 am

        but it’s true

    • Frog October 27, 2012, 7:19 am

      but the ‘nicely laid out’ screen shot is not one of Apple’s.

    • Yolan November 6, 2012, 12:57 am

      Hate Apple anyone/everyone should hate Apple
      +Google +Microsoft +Linux +everyone against Apple

      • hwaism November 16, 2012, 3:43 am

        Just because Apple using Unix and it’s close. Linux is open. Just a preference.

  • imran ahmad March 17, 2012, 1:09 pm

    both are similar but linux is flavour of unix which has CLI.

  • venkatesan.g March 20, 2012, 9:16 am

    yea,it’s very useful for me thank u………………………………………..

  • mukesh tiwari March 23, 2012, 3:13 pm

    very very thak you all of them..
    becuase i d’nt know diffrent unix & linux..

  • Nivi March 28, 2012, 4:43 am

    its nice and gives more valuable knowledge…

  • deepak March 30, 2012, 8:39 am

    Thanks for the use full info….
    Thanks again dude…..>>!!

  • amit April 13, 2012, 7:05 am

    yes it good to know the difference between two

    • DÎÑÊßH July 17, 2016, 11:37 am

      Thanks to all for this useful information.

  • Anil Mekala April 13, 2012, 9:42 am

    Nice info.

  • akul April 17, 2012, 10:54 am

    simply awesum!!!!
    completely satisfied!!
    good job :)

  • Unix How To April 27, 2012, 9:42 am

    Dude this article is huge, Thanks for the comparison bus isn’t ubuntu debian based?
    If I were you I would have listed the main Linux distributions only :)

  • vikram May 4, 2012, 10:11 am

    thks 4 those valuable info. …….

  • Shuaib May 8, 2012, 10:59 am

    Excellent explination thx man,

  • Shuaib May 8, 2012, 11:00 am

    really helpfull information, many thanks mate.

  • nike May 11, 2012, 3:20 pm

    awesome explanation dude!!!!!!!

  • Monica tyagi May 15, 2012, 6:29 am

    Really it is too good n informatic.

  • Gowtham June 25, 2012, 11:17 am

    good clear cut explanation..

  • karvendan AP June 26, 2012, 7:03 am

    Its easy to understand. But all company designs based on LINUX OS or UNIX.. If anyone. Than why not other one?

  • Rajashree July 5, 2012, 3:43 pm

    Very informative.

  • Ajay July 13, 2012, 9:59 am

    Thanks ,it enhanced my basic knowledge! Nice informatiön
    Really very helpful information.

  • Akshay July 17, 2012, 8:04 am

    nice difference!!!!!!!!!!!

  • muninder reddy July 27, 2012, 9:30 am

    hmm nice stuff…!!

  • Shyam D July 29, 2012, 2:06 pm

    Its easy ..
    Thank You So Much,,,,,,,

  • Rabbia August 5, 2012, 11:31 am

    Good job.:)
    But it could be a bit simpler nd easy to understand.

  • cluclu August 10, 2012, 5:12 am

    I Can has Lunix for free.
    Also question. What is difference Email and Lunix ?
    I Can has Microsoft Office words on Lunix?

  • subbu August 10, 2012, 4:57 pm

    what is a kernel?

    • sandeep August 19, 2012, 1:11 pm

      Frend Kernel is the heart of the operating system… It manages or controls al the OS operations

    • Chris September 7, 2012, 9:12 am

      It’s the middle part of a nut!!! The bit that really does anything!!

  • Amanpreer saini August 19, 2012, 4:48 am

    Its a very good explanation

  • Nagnath Panchal August 22, 2012, 10:21 am

    good clear cut explanation.

  • Anonymous August 23, 2012, 10:46 am

    Thank, bro it’s useful…

  • fahir August 28, 2012, 11:04 am


  • Gh,Abouzar August 28, 2012, 12:56 pm

    Thank you for clear explanation.

  • amar September 3, 2012, 5:50 pm

    very good all explanation.

  • vikas September 5, 2012, 5:58 pm


  • shaik September 6, 2012, 10:26 am

    Thanks for the use full information Vivek :-)

  • Neminath Palled September 9, 2012, 4:19 pm

    Kernel is there in both the OS?

  • kamlesh September 11, 2012, 11:43 am

    unix is a copyright it is mostly usefull of popular company,
    unix is part of linux.

    • Gowtham November 27, 2012, 8:08 am

      Dude, UNIX IS A PART OF LINUX ???

      I think you need to read the article again.

  • nikhil kumar September 12, 2012, 4:44 am

    Very Very Useful info about linux and unix…really helped..thank you :-)

  • Ramashanker September 23, 2012, 8:04 pm

    this is very useful for me and other.thanx

    • dhaya October 9, 2012, 8:12 am

      ya its nice to understand the linux and unix differences

  • vinay October 9, 2012, 6:10 am

    thanks for the info….

  • priyanka and indu October 9, 2012, 10:04 am

    its not as according to us………….but good source of information about linux and unix.
    but does not able to differentiate b/w these o.s properly

  • sanju kumar October 15, 2012, 4:03 pm

    it is good to have ,,, such operating system…..linux is totally based on unix os … or we can say it’s xerox of unix .
    y i love unix OS ?
    =coz it come with fully loaded software .. Eg-(perl, php, python, GNU c/c++ compilers)
    which is important for us ,,,,,,,,,,,,

  • evidence munyai October 25, 2012, 11:15 am

    Thnks fr the useful info it realy helps a lot..good job

  • evidence munyai October 25, 2012, 11:17 am

    Thanks fr the usefull info it realy helping a lot..keep up the good work

  • seit October 31, 2012, 9:20 am

    its very useful link, its clear my doubt on unix

  • jeswanthmg November 1, 2012, 9:34 am

    Thanks for clear explination

  • Rajan November 1, 2012, 5:24 pm

    Thank You. It helps me much.

  • mahesh November 8, 2012, 9:13 am

    thanks…..a lot
    for to give information

  • lakshmi November 12, 2012, 6:17 am

    its more useful for me thank you very muchhhhhhhhhhhhhhhhh

  • lakshmi November 12, 2012, 6:46 am

    thank u soooooooooooooo much for u

  • divya November 14, 2012, 6:35 am

    linux and unix diff is nice
    nice clear explanation
    thanq so much

  • priya November 16, 2012, 9:43 am

    good job….. very well explanation……thanxxxx…..:-)

  • ravi November 24, 2012, 2:30 pm

    thanks.. good info.

  • Sam November 25, 2012, 8:59 am

    Its Good amount of satisfying information…..
    Nice work out.

  • Saidi juma makassy December 1, 2012, 9:13 pm

    I think now i know the different of linux and unix.thanks

  • satish kumar December 7, 2012, 7:08 am

    The above given informatiom is very good.This type of informatiom very helpfull of Us.
    thank you very much behalf of ME.

  • Harsha December 14, 2012, 7:42 am

    thanks for providing good knowledge..!

  • manuel December 16, 2012, 1:15 pm

    the differences were very clear and precise…. Thanks nd keep up the good work.

  • mukesh kumar December 20, 2012, 7:27 pm

    which version of linux is best for c/c++ .i want to know pls some one reply me fast.

  • SUNNY SHARMA January 5, 2013, 5:21 pm


  • karthik January 17, 2013, 8:37 am

    so we can use UNIX as a tool to develop OS like LINUS..is my opinion correct…if not pls help me in clarifying my confusion..

  • Kentgrav January 27, 2013, 10:01 pm

    Thanks a lot for this explanation! Really helped clarify some things I’ve been wondering!

  • Husnain February 1, 2013, 11:47 am

    GUI and Fast speed

  • Hasaan February 11, 2013, 8:54 am

    Great. Nice and precise technical writing :)

  • Gopalakrishnan February 20, 2013, 7:16 am


    I like to install Sun Solaris operating system in Laptop, for installing solaris OS, is there any PC configuration should be required or am using windows 7, i can install solaris OS using VM ware software?

    Any one can guide me?


  • Rwigamba March 23, 2013, 5:35 pm

    Guys for real i appreaciate what your doing.i love being network admin but i was little confused on the difference btn Linus &Unix its solved……

  • messiVish April 10, 2013, 10:00 am

    So, Linux differs from UNIX by:
    -being operatable on PC’s
    -open source and therefore free

    UNIX obviously :
    – runs on mainframe computers only
    – and must be legally purchased as it is closed source

    is this corect?

  • Sudhir May 15, 2013, 5:43 am

    Really good stuff!!! thanks

  • Winston Spratt May 21, 2013, 11:36 pm

    Quite frankly, you deserve an Oscar for this piece of information.
    I found it to be extremely educationa…. Great work and Thank you

  • Kanishak May 28, 2013, 5:37 am

    Thanks for sharing such a wonder differentiation between Unix and Linux.

  • soma sekhar June 3, 2013, 1:29 am

    Thank you so much, i got the information about the difference between unix and linux.I am very happy about your website.

  • lily June 9, 2013, 1:33 am

    so..linux and unix is a same thing? both compatible in a laptop or in cpu? means..when i want to change os from windows to ubuntu, i just uninstall windows or can the two os work together?

  • Ricky July 22, 2013, 3:16 pm

    we can say linux as a flavor of unix.
    unix has its different versions for different companies

    • Ricky July 22, 2013, 3:20 pm

      for example,
      IBM — AIX, HP — HP-UX, Sun — Solaris.
      same is for linux also…linux can available free to use but unix is not …
      different versions of linux has numbers of same applications but in unix different applications for different versions…

      thnks to all …its very good work …….keep it (y).!!!!!!!!!!!!

  • eagles051387 July 29, 2013, 10:06 am

    Your mention of linux only supporting 2 file systems is inaccurate. There are a wide variety of file systems besides those two.

  • Md.kashim August 28, 2013, 3:38 pm

    Than you very much for sharing the information. This is very useful information

  • vijilkumar v August 30, 2013, 4:32 am

    thank uu..very much

  • jaheen afsar October 22, 2013, 7:40 am

    this info was so helpful. can you pls make it more technical.

  • Abdul Hadi October 25, 2013, 11:49 am

    Professional Explanation!
    Nicely Done..

  • gulzarahmad December 12, 2013, 4:53 am

    I understant difference bitween linux and unix ?

  • Himani December 29, 2013, 7:38 am

    i understood each and every difference, thankyou so much

  • Shehzad Lal January 17, 2014, 11:27 am

    This site helps me to teach children. thank you.

  • abc January 18, 2014, 8:08 am


  • Manoja February 7, 2014, 4:52 pm

    Enough for overview…….

  • jagdeep lehri February 25, 2014, 10:11 am

    You are doing nice thing here.

    Thank you so much

  • Himanshu April 7, 2014, 2:41 am

    lot of thanks for your valuable information for me ..

  • Hamid May 16, 2014, 10:59 pm


    This is Hamid from Egypt, I am so interested to learn Unix. I found out that most of people in my country are tide up to Windows while I’ve had a quick look at Unix and I liked it so much. I am not asking you for any thing just to guide me to the right and true way to get the whole thing about it. Please tell me what to do to get it .

    With kindness always,
    Hamid Kamel

  • ANUSHA May 26, 2014, 1:42 am

    i got more knowledge about this linux & unix this explanation helps me a lot for my future and also the reply of peoples explanation is also good .still provide me more about linux and unix

  • Lalit June 22, 2014, 6:13 am

    Good and very useful information!!!

  • pooja khule June 24, 2014, 10:04 am

    very good…………|

  • Rajesh kumar July 3, 2014, 12:22 pm

    It’s really a nice explatanation.

  • Manjunath Shetty July 9, 2014, 12:01 pm

    Very helpful information. Thanx a lot !! :-)

  • yogesh walia July 20, 2014, 4:02 pm

    good detailed explanation

  • Mohamed October 12, 2014, 4:09 pm

    It is a good website i love it<<<<<<<<>>>>>>>>>>#### ~~~~~~ 5 STARS

  • srikanth November 24, 2014, 10:37 pm

    thanks alot for your valuable information..,, it’s help me alot..,,,,***********************************

  • Sachin H Shivhare December 3, 2014, 10:37 pm

    Its a Good Explanation , Appriciating for the same.
    Adding few terms , Linux is not the same OS as compare to UNIX OS , it is developed the way it Actually looks like UNIX , in a Era , UNIX is being used in Telecommunication based Servers like Sun-Solaries Netra V440/v890/M3000/X4170 (All are Solaries based Unix OS) , Installed the Application on this Servers.

  • vikash January 14, 2015, 6:00 pm

    .Dude this article is huge, Thanks for the comparison

  • Johnny ynnhoJ February 11, 2015, 12:34 am

    I like it dude. +1.

  • jaz khaan April 7, 2015, 5:54 am

    plz telll comparison between Unix, xp,Mac os system

  • Sandeep August 21, 2015, 3:47 pm

    Thank you

  • y.chaitanya October 8, 2015, 6:35 am

    nice……………..information thanks

  • Dips January 5, 2016, 8:57 am

    This is very niceeeeeeeeeeee…………
    Eaisly understood format……….

  • Tanu January 5, 2016, 9:00 am

    Thanks alot for your valuable information..,,………..

  • Amola funmilola I. January 12, 2016, 5:29 pm

    I’ve got enough point to convince my ICT lecturer. Thanks….

  • curious January 24, 2016, 6:26 pm

    Whenever i am searching about basics of unix, every other search comes up with basics of linux.
    is it because both of the are similar at base level? or am i missing something? since i have just started learning about unix, i am a bit confused whether leaning about one makes you understand the other then?

  • rusalika silas July 11, 2016, 4:47 pm

    yes unix is part of lunix

  • manoj December 2, 2016, 5:43 am

    its very informative and clear. using this article i have all the answers about my doubt. thanks a lot.

  • Moosecat January 21, 2017, 2:21 pm

    I like FreeBSD!

  • Ian January 26, 2017, 5:32 pm

    Article is seriously flawed by omitting discussion of modern Unix-derived open-source systems such as OpenBSD (the guys who gave you OpenSSH, the PF firewall and other innovations), FreeBSD and NetBSD, all derived from Berkeley Unix, a version developed at UC Berkeley in the late 1970’s.

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