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Mysterious ?

Prepared By

Kedar Landge (23)

Mayank Bhagat (29)

Hardik Ataliwala (10)

Jay Ajwani (17)

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History

Advantages

Disadvantages

Features

Linux File System Overview

Conclusion

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Contents

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DOSBill Gates

Apple Macs

UnixBell Labs

MINIX - Andrew S. Tanenbaum, aUS-born Dutch professor

Beginning

Newbabyin

thehorizon

Development

Linuxtoday

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Beginning

Newbabyin

thehorizon

Development

Linuxtoday

GNU project- by Richard Stallman

1984: GNU C Compiler

In 1991, Linus Benedict Torvalds :

the historic post was sent to the MINIX

news group by Linus [View It] Linux version comes into 0.01 => 0.02

=> => bigger and more robust

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Beginning

Newbabyin

thehorizon

Development

Linuxtoday

Confrontation fromAndrewTanenbaum, the great teacherwho wrote MINIX [View It]

Linuss reply [View It]

Development:

Commercial vendors moved in ported to many different platforms

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Beginning

Newbabyin

thehorizon

Development

Linuxtoday

Many Linux distributions:

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Lowcost

Flexibility

Choice

Installation

Security

Open

source

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Lowcost

Flexibility

Choice

Installation

Security

Open

source

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Lowcost

Flexibility

Choice

Installation

Security

Open

source

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Lowcost

Flexibility

Choice

Installation

Security

Open

source

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Lowcost

Flexibility

Choice

Installation

Security

Open

source

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Lowcost

Flexibility

Choice

Installation

Security

Open

source

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Lowcost

Flexibility

Choice

Installation

Security

Open

source

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Learning

Equivalent

programs

More

technical

Compatibility

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Learning

Equivalent

programs

More

technical

Compatibility

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Learning

Equivalent

programs

More

technical

Compatibility

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Learning

Equivalent

programs

More

technical

Compatibility

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Open-source software (OSS) is computer software that isavailable with source code: the source code and certainother rights normally reserved for copyright holders areprovided under an open-source license that permits users to

study, change, improve and at times also to distribute thesoftware.

Open source software is very often developed in a public,collaborative manner. Open-source software is the mostprominent example of open-source development and often

compared to (technically defined) user-generated contentor (legally defined) open content movements.

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Office

Open Office

Internet

Web Servers and browsers

Programming

Scripts (shell Scripts)

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Writer(similar to Microsoft Word)

Calc(Similar to Microsoft Excel)

Impress(similar to Powerpoint) Draw(Imaging software)

Base (Similar to Microsoft Access)

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Apache (more widely used than IIS)

Mozilla Firefox (Broke the monopoly of

Internet explorer)

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The Linux/Unix shell refers to a special program thatallows you to interact with it by entering certaincommands from the keyboard; the shell will

execute the commands and display its output onthe monitor.

Bourne shell, C shell , bash are some examples ofshell.

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Shell Script is the number of commandscombined in a single file

When the script file is executed all thecommands written inside the script fileare executed

Extension of shell script file is .sh

To write a shell script we have to openeditor from command prompt and enterVI to open editor

It is case sensitive 28

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Root is the user name or account that bydefault has access to all commands and

files on Linux Root is the top level directory on a

system. It contains all sub directories.

It is designated by forward slash(/)

/root is the users home directory.

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cal 2012 [ displays the calendar of 2012]

cat > [File name] [ to create file ]

cat [File name ] [ displays the content of file]

mkdir [name] [ to create directory]

Cd [name] [ to change directory]

Cd .. [ to come out of directory]

rmdire [name] [to remove directory]

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Today Linux has grown from being ahacker / home developedOS to being accepted world wide.

It is highly regarded and runs manymany major enterprises.

Many sites are now also using it ontheir client machines.

Linux currently has anestimated user figuresranging from 20 to 30 million.

And growing!

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From: torvalds@klaava.Helsinki.FI (Linus Benedict Torvalds)Newsgroups: comp.os.minixSubject: What would you like to see most in minix?

Summary: small poll for my new operating systemMessage-ID: Date: 25 Aug 91 20:57:08 GMTOrganization: University of Helsinki

Hello everybody out there using minix -I'm doing a (free) operating system (just a hobby, won't bebig and professional like gnu) for 386(486) AT clones. This hasbeen brewing

since April, and is starting to get ready. I'd like any feedback onthings people like/dislike in minix, as my OS resembles it somewhat(same physical layout of the file-system(due to practical reasons)among other things). I've currently ported bash(1.08) andgcc(1.40),and things seem to work. This implies that I'll get somethingpractical within a few months, and I'd like to know what featuresmost people would want. Any suggestions are welcome, but I

won't promise I'll implement them :-)Linus (torvalds@kruuna.helsinki.fi)PS. Yes - it's free of any minix code, and it has a multi-threadedfs. It is NOT portable (uses 386 task switching etc), and it probablynever will support anything other than AT-harddisks, as that's all Ihave :-(.

[BACK]

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"I still maintain the point that designing amonolithic kernel in 1991 is afundamental error. Be thankful you are

not my student. You would not get a highgrade for such a design :-)"(Andrew Tanenbaum to Linus Torvalds)

[BACK]

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Your job is being a professor andresearcher: That's one hell of a good

excuse for some of the brain-damagesof minix.(Linus Torvalds to Andrew Tanenbaum)

[BACK]

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Sometimes errors are the initial foot stepsof new inventions