Introduction to linux

An Introduction To Linux

Vikash Agrawal+91-9379191136

vikashagrawal1990@gmail.com

Linux Users Group, Manipal

October 16, 2010

Index

1 Linux Philosophy

2 Open Source

3 Free Softwares

4 History

5 Open Source Software Model

6 Flavours

7 Linux Advantages

8 Who Uses Linux

9 Major Distributions

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 2 / 14

Linux Philosophy

Linux is Free and Open Source

The term Free is in the sense, Freedom of source

Since Linux is free and Open Source, there are many flavors to linux

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 3 / 14

Linux Philosophy

Linux is Free and Open Source

The term Free is in the sense, Freedom of source

Since Linux is free and Open Source, there are many flavors to linux

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 3 / 14

Linux Philosophy

Linux is Free and Open Source

The term Free is in the sense, Freedom of source

Since Linux is free and Open Source, there are many flavors to linux

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 3 / 14

Open Source - Definition

Owners of Proprietary Softwares closely guard their Source code, andthus cannot be modified by anyone except them

On the contrary Open Source softwares means, the source code of thesoftware is OPEN to general public

Source Code is made open so that people too can contribute to thedevelopment of software

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 4 / 14

Open Source - Definition

Owners of Proprietary Softwares closely guard their Source code, andthus cannot be modified by anyone except them

On the contrary Open Source softwares means, the source code of thesoftware is OPEN to general public

Source Code is made open so that people too can contribute to thedevelopment of software

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 4 / 14

Open Source - Definition

Owners of Proprietary Softwares closely guard their Source code, andthus cannot be modified by anyone except them

On the contrary Open Source softwares means, the source code of thesoftware is OPEN to general public

Source Code is made open so that people too can contribute to thedevelopment of software

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 4 / 14

Free Softwares

Free does not mean Free of Cost, instead it means the freedom ofsource code

Though Open Source are mostly free of cost but with few Exceptions(for more info on this you can visit - http://en.wikipedia.org/wiki/List_of_proprietary_software_for_Linux)

In Open Source Software you have the right to use Use, Modify,Copy and Distribute the software with or without the changesthat you made to the code

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 5 / 14

Free Softwares

Free does not mean Free of Cost, instead it means the freedom ofsource code

Though Open Source are mostly free of cost but with few Exceptions(for more info on this you can visit - http://en.wikipedia.org/wiki/List_of_proprietary_software_for_Linux)

In Open Source Software you have the right to use Use, Modify,Copy and Distribute the software with or without the changesthat you made to the code

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 5 / 14

Free Softwares

Free does not mean Free of Cost, instead it means the freedom ofsource code

Though Open Source are mostly free of cost but with few Exceptions(for more info on this you can visit - http://en.wikipedia.org/wiki/List_of_proprietary_software_for_Linux)

In Open Source Software you have the right to use Use, Modify,Copy and Distribute the software with or without the changesthat you made to the code

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 5 / 14

History

In 1970’s AT&t Bell labs fundeda project to create a newOperating System and came upwith UNIX

UNIX finally developed as apowerfull Operating System andquickly became very famous

Soon after contribution fromvarious Universities AT&Tlicensed it and made itproprietary making it unfit forteaching and learning

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 6 / 14

History

In 1970’s AT&t Bell labs fundeda project to create a newOperating System and came upwith UNIX

UNIX finally developed as apowerfull Operating System andquickly became very famous

Soon after contribution fromvarious Universities AT&Tlicensed it and made itproprietary making it unfit forteaching and learning

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 6 / 14

History

In 1970’s AT&t Bell labs fundeda project to create a newOperating System and came upwith UNIX

UNIX finally developed as apowerfull Operating System andquickly became very famous

Soon after contribution fromvarious Universities AT&Tlicensed it and made itproprietary making it unfit forteaching and learning

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 6 / 14

History

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 7 / 14

History

Linux is Unix-like OperatingSystem

The code of UNIX is not copied,only the Operating SystemConcepts are properlyincorporated

The development of Linuxstarted from scratch and thus isjust a Unix clone and not freelyavailable UNIX copy

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 8 / 14

History

Linux is Unix-like OperatingSystem

The code of UNIX is not copied,only the Operating SystemConcepts are properlyincorporated

The development of Linuxstarted from scratch and thus isjust a Unix clone and not freelyavailable UNIX copy

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 8 / 14

History

Linux is Unix-like OperatingSystem

The code of UNIX is not copied,only the Operating SystemConcepts are properlyincorporated

The development of Linuxstarted from scratch and thus isjust a Unix clone and not freelyavailable UNIX copy

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 8 / 14

Free/Open Softwares good model

Closed softwares Like Windowsowners consider that lesspeople should the sourcecode,less is the chance ofgetting their products hacked

Sharply opposite, Open Sourcedevelopers consider that morepeople should know the sourcecode, more bugs will be foundand more people will contributeback fixing those bugs

A great example for this isUbuntu.

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 9 / 14

Free/Open Softwares good model

Closed softwares Like Windowsowners consider that lesspeople should the sourcecode,less is the chance ofgetting their products hacked

Sharply opposite, Open Sourcedevelopers consider that morepeople should know the sourcecode, more bugs will be foundand more people will contributeback fixing those bugs

A great example for this isUbuntu.

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 9 / 14

Free/Open Softwares good model

Closed softwares Like Windowsowners consider that lesspeople should the sourcecode,less is the chance ofgetting their products hacked

Sharply opposite, Open Sourcedevelopers consider that morepeople should know the sourcecode, more bugs will be foundand more people will contributeback fixing those bugs

A great example for this isUbuntu.

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 9 / 14

Why so many Linux Flavours ???

All Linux flavours are calledDistros which are a fancyterm for distributions

Since its Free and Open Sourcepeople are free to modify andrelease their own version andcopies

If you dont like you one distroyou can freely move to any otherone which you like for e.g- OpenSuse, Mandriva, Slackware etc

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 10 / 14

Why so many Linux Flavours ???

All Linux flavours are calledDistros which are a fancyterm for distributions

Since its Free and Open Sourcepeople are free to modify andrelease their own version andcopies

If you dont like you one distroyou can freely move to any otherone which you like for e.g- OpenSuse, Mandriva, Slackware etc

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 10 / 14

Why so many Linux Flavours ???

All Linux flavours are calledDistros which are a fancyterm for distributions

Since its Free and Open Sourcepeople are free to modify andrelease their own version andcopies

If you dont like you one distroyou can freely move to any otherone which you like for e.g- OpenSuse, Mandriva, Slackware etc

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 10 / 14

Why so many Linux Flavours ???

All Linux flavours are calledDistros which are a fancyterm for distributions

Since its Free and Open Sourcepeople are free to modify andrelease their own version andcopies

If you dont like you one distroyou can freely move to any otherone which you like for e.g- OpenSuse, Mandriva, Slackware etc

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 10 / 14

Advantages Of Linux

Low Cost

Stablity

Performance

Network Friendliness

Flexiblity

Compatiblity

Fast and Easy Installation

Full use of Hard Disk

Multitasking

Security

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 11 / 14

Advantages Of Linux

Low Cost

Stablity

Performance

Network Friendliness

Flexiblity

Compatiblity

Fast and Easy Installation

Full use of Hard Disk

Multitasking

Security

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 11 / 14

Advantages Of Linux

Low Cost

Stablity

Performance

Network Friendliness

Flexiblity

Compatiblity

Fast and Easy Installation

Full use of Hard Disk

Multitasking

Security

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 11 / 14

Advantages Of Linux

Low Cost

Stablity

Performance

Network Friendliness

Flexiblity

Compatiblity

Fast and Easy Installation

Full use of Hard Disk

Multitasking

Security

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 11 / 14

Advantages Of Linux

Low Cost

Stablity

Performance

Network Friendliness

Flexiblity

Compatiblity

Fast and Easy Installation

Full use of Hard Disk

Multitasking

Security

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 11 / 14

Advantages Of Linux

Low Cost

Stablity

Performance

Network Friendliness

Flexiblity

Compatiblity

Fast and Easy Installation

Full use of Hard Disk

Multitasking

Security

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 11 / 14

Advantages Of Linux

Low Cost

Stablity

Performance

Network Friendliness

Flexiblity

Compatiblity

Fast and Easy Installation

Full use of Hard Disk

Multitasking

Security

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 11 / 14

Advantages Of Linux

Low Cost

Stablity

Performance

Network Friendliness

Flexiblity

Compatiblity

Fast and Easy Installation

Full use of Hard Disk

Multitasking

Security

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 11 / 14

Advantages Of Linux

Low Cost

Stablity

Performance

Network Friendliness

Flexiblity

Compatiblity

Fast and Easy Installation

Full use of Hard Disk

Multitasking

Security

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 11 / 14

Advantages Of Linux

Low Cost

Stablity

Performance

Network Friendliness

Flexiblity

Compatiblity

Fast and Easy Installation

Full use of Hard Disk

Multitasking

Security

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 11 / 14

Who Uses Linux???

Almost all Hackers rely on linux

Almost all Supercomputers runs on Linux

Amazon.com online retailer recently switched entirely to Linux andsaved 17 million Dollars

Google, the most popular search engine on the web, runs on a clusterof over 1000 Linux servers

Wikipedia runs on linux since its birth and has shifted to Ubuntusince 2008

NYSE runs on linux

To see more unexpected places running on Linux, please visithttp://www.focus.com/fyi/information-technology/

50-places-linux-running-you-might-not-expect/

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 12 / 14

Who Uses Linux???

Almost all Hackers rely on linux

Almost all Supercomputers runs on Linux

Amazon.com online retailer recently switched entirely to Linux andsaved 17 million Dollars

Google, the most popular search engine on the web, runs on a clusterof over 1000 Linux servers

Wikipedia runs on linux since its birth and has shifted to Ubuntusince 2008

NYSE runs on linux

To see more unexpected places running on Linux, please visithttp://www.focus.com/fyi/information-technology/

50-places-linux-running-you-might-not-expect/

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 12 / 14

Who Uses Linux???

Almost all Hackers rely on linux

Almost all Supercomputers runs on Linux

Amazon.com online retailer recently switched entirely to Linux andsaved 17 million Dollars

Google, the most popular search engine on the web, runs on a clusterof over 1000 Linux servers

Wikipedia runs on linux since its birth and has shifted to Ubuntusince 2008

NYSE runs on linux

To see more unexpected places running on Linux, please visithttp://www.focus.com/fyi/information-technology/

50-places-linux-running-you-might-not-expect/

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 12 / 14

Who Uses Linux???

Almost all Hackers rely on linux

Almost all Supercomputers runs on Linux

Amazon.com online retailer recently switched entirely to Linux andsaved 17 million Dollars

Google, the most popular search engine on the web, runs on a clusterof over 1000 Linux servers

Wikipedia runs on linux since its birth and has shifted to Ubuntusince 2008

NYSE runs on linux

To see more unexpected places running on Linux, please visithttp://www.focus.com/fyi/information-technology/

50-places-linux-running-you-might-not-expect/

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 12 / 14

Who Uses Linux???

Almost all Hackers rely on linux

Almost all Supercomputers runs on Linux

Amazon.com online retailer recently switched entirely to Linux andsaved 17 million Dollars

Google, the most popular search engine on the web, runs on a clusterof over 1000 Linux servers

Wikipedia runs on linux since its birth and has shifted to Ubuntusince 2008

NYSE runs on linux

To see more unexpected places running on Linux, please visithttp://www.focus.com/fyi/information-technology/

50-places-linux-running-you-might-not-expect/

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 12 / 14

Who Uses Linux???

Almost all Hackers rely on linux

Almost all Supercomputers runs on Linux

Amazon.com online retailer recently switched entirely to Linux andsaved 17 million Dollars

Google, the most popular search engine on the web, runs on a clusterof over 1000 Linux servers

Wikipedia runs on linux since its birth and has shifted to Ubuntusince 2008

NYSE runs on linux

To see more unexpected places running on Linux, please visithttp://www.focus.com/fyi/information-technology/

50-places-linux-running-you-might-not-expect/

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 12 / 14

Who Uses Linux???

Almost all Hackers rely on linux

Almost all Supercomputers runs on Linux

Amazon.com online retailer recently switched entirely to Linux andsaved 17 million Dollars

Google, the most popular search engine on the web, runs on a clusterof over 1000 Linux servers

Wikipedia runs on linux since its birth and has shifted to Ubuntusince 2008

NYSE runs on linux

To see more unexpected places running on Linux, please visithttp://www.focus.com/fyi/information-technology/

50-places-linux-running-you-might-not-expect/

Vikash (LUG Manipal) An Introduction To Linux October 16, 2010 12 / 14

Major Distibutions

Open Suse

Red Hat

Debian

Knoppix

Fedora

Slackware

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Thank You!!!

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