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Hey guys wassup this is Nayan here from Tech Barrack Solutions and
today we are starting up with Linux tutorials.
We will talk about Linux right from scratch
and in this first tutorial I will give an introduction to Linux.
So let's proceed.
What is Linux?
Linux is an Operating System
just like Windows and Mac OS X.
Linux derives many things from
Unix Operating System.
Linux is
open source and free.
What does open source and free mean? Let's have a look.
Free basically means that no payments are required
and you can directly download the Linux Operating System and install it
on your personal computer.
Open Source means that there is a source code
related to Linux
and you can this source code as the Linux source code
and this source code can be used by any person in the world
to create
his own Operating System
Now the Operating System that is created
using this Linux source code
will be nothing but the Linux Operating System.
Now because Linux is open source
we have a large number of Linux Operating Systems out there in the market.
Let's have a look at the hardware requirements of Linux Operating System.
I will not go into the specific hardware requirements like
how much RAM is required
or how much space is required,
every Linux distribution
has different
hardware requirements. What I am gonna show you
is the basic hardware requirement
and that is
Linux can be made to run on any x86 or x64 based
personal computer.
x86 is 32 bit
and x64 is 64 bit.
Who uses Linux?
Linux is mainly used
in Super Computers,
and Android powered devices.
Super Computers are the fastest computers in the world.
They can do large number of arithmetical calculations, in a single second.
90% of the fastest 500 Super Computers
use Linux.
That gives us a hint
that Linux is the fastest Operating System.
Now servers
is like a storage
and in
website owners store all their website data, SQL databases, Oracle databases
etc etc etc.
And according to a survey,
approximately 60% of servers use Linux.
and only like 40% use Windows.
So Linux is dominating in the server area.
And we also have Android powered devices.
Now Android powered devices also make us of Linux.
And Android powered devices
or you could say the Android Operating System,
is the most famous mobile Operating System.
and the most widespread mobile Operating System today
in this era.
What is the usage share of Linux?
If we have a look
at the Wikimedia statistics for June 2012, it says that Linux is
being used
only by 1.53%
and Android is being used by 4.73%.
We all know that Android is leading in the
marketplace market space but
Linux in that desktop or you could say the personal computer market space
is lagging and that is
4-5 years ago Linux
was like
you had to code in Linux for every specific task.
Today Linux has been evolved to Graphical User Interface (GUI),
so expect
that Linux market share increases.
Now the second reason why Linux is lagging
is because it
does not have great applications.
Most of the applications are
open source
and I am not saying that open source applications are bad.
I myself use open source applications because they are free
but the problem with
open source software is that
they lack of many things,
so you require paid softwares
and one of the best example is Adobe Photoshop.
Adobe Photoshop is a paid software available for Windows and Mac OS X.
It is not available for Linux. The Linux version is Gimp. It is a open source
version. It has the same functions as Adobe Photoshop but still
users have said that Adobe Photoshop is better than Gimp.
So there might be certain areas where Adobe Photoshop is better. So we
expect that Linux should get these kind of applications very soon.
And if it get's that
then it's market share will again boost up.
And it also lacks in games. So again Linux needs some great games
and if these games come to Linux then again the market share of Linux will boost up.
Keeping the market share aside,
let's talk about the filesystem of Linux.
Linux makes use of extended journaling filesystem
that is ext4, ext3 and ext2.
ext4 is currently being used
and it supports that is extended
journaling filesystem supports
storage volumes up to 2^60 bytes
and that's very
You can google it up
and you would actually find that that's
GB's and GB's and GB's.
An extended journaling filesystem
that is ext4
has got faster file scanning. So
pretty much overall extended journaling filesystem is a really good.
Now what are the famous Linux
Graphical User Interfaces?
and I am talking about the famous ones. There are many Graphical User Interfaces in Linux.
I am just talking about the famous four.
One is GNOME, second is KDE
Plasma Desktop,
third is XFCE
and fourth is LXDE.
Now GNOME can be
further be given more GUI by using GNOME Shell.
Ubuntu Unity.
Let's have a look at these famous Graphical User Interfaces.
Let's have a look at GNOME.
On the left hand side
we have Ubuntu Unity
and on the right hand side we have GNOME Shell.
So this is how it looks
in the GNOME
Graphical User Interface.
For KDE Plasma Desktop,
it will look like this.
And for XFCE and LXDE,
it will look like this. The XFCE is on the left hand side and LXDE
is on the right hand side.
Now let's talk about the home folder in Linux.
Whenever you install a Linux Operating System,
you will have a home folder.
Now home folder will contain all your documents, music, videos,
etc etc.
Now what comes with the Linux OS?
Every Linux distribution comes with basic required softwares like
photo viewer,
video player, documents editor,
text editor,
web browser,
mail client,
and few games.
And many other applications
which are required for daily usage.
Now many Linux distribution also comes with
programming languages installed and
they may include PHP, Java, C, C++,
etc etc.
So that's what comes with Linux
Operating Systems.
Now what about programming applications in Linux?
You can use various programming languages like C, C++, Java,
etc etc to
make applications on
What about applications? How do you install them?
Many Linux distributions have their own
App Store,
just like the Mac App Store and users can download the applications from their
App Store.
Applications can also be installed from the internet too.
Executable file for every Linux distribution is different.
executable file is .deb
So you can install files
.deb also
or you could say you can install the applications using the .deb
executable file.
What about uninstalling the applications?
Application uninstalling is done
using the Terminal
or the App Store
or using the executable file itself.
Now what about the Terminal?
What is Terminal?
Terminal is like the Command Prompt
of Windows.
It is used to perform various tasks like pinging,
finding IP Addresses of your internet connection,
installing applications,
doing SSH, etc etc.
So that is the end of this Linux
and i hope you liked it.
Please rate, comment, subscribe and visit http://www.techbarrack.com and also visit the links
given on your screen.


Linux Tutorials [01] - Basics Of Linux Operating System

2314 分類 收藏
Why Why 發佈於 2013 年 3 月 26 日
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