Introduction To UNIX

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Introduction

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This module is meant to be an introduction to theOperating System (OS) UNIXUNIX

Why UNIX? (click to know more..)

You will learn the most basic commands, and when you

learn these, you will find UNIX very easy to use

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Introduction

UNIX is a very powerful and stable OS

Philosophy: Make each program do one thing well

UNIX has become the operating system of choice forengineering and scientific workstations

Very fit to run heavy applications

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What is an Operating System?

Every computer requires an operating system

An operating system is the program that controls all the other parts of a computer system, both the hardware and the software. It allocates the computer's resources and schedules tasks.

UNIX is a multi-user, multi-tasking operating system. Multiple users may have multiple tasks running simultaneously. This is very different from PC operating systems. (e.g. Windows)

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Log On

When you log on UNIX, we will use the ”Petrus” server

On your Start menu, run WebtermX Administrator In the Connection List, highlight Petrus, and hit

Connect

Log on as you would in Windows

Okay, I’m logged on. Now

what?

Click !

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The User Interface

When you are logged on, you will see something like this

Here you can find File ManagerFile Manager, Text EditorText Editor, Help Help FunctionFunction etc - very similar to those in WindowsWindows

Click picture for larger view and comments

More

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The Terminal Window

We will now focus on the Terminal Window in UNIX

This is our workplace for making directories, running programs, deleting files and a million other things

For this we will use a set of commands

Name of Server

Command Prompt

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Commands

UNIX contains several levels of commands

A command makes something happen, e.g. deletes a file or makes a directory

All UNIX commands are executed by pressing Enter

(hit button to see an example)

Example

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List of Commands

cd - change directorypwd - displays present working directoryls - list contents of directorymkdir - make directory rmdir - remove (empty) directoryrm - remove filescp - copy filesmv - move or rename filescat - display fileman - help on a commandclear - clear screen

These are a few of the most common commands, though there are many more available

Know these commands? Click here for some additionalinfo

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When using UNIX, things will go much more faster if you learn and use the following:

To switch between previously used commands, use theup and down arrows

If you f.ex are changing directory to documents, type cd do and hit TAB, then UNIX will fill out the rest of thename itself. If you have several directories that beginswith do, UNIX lists all of them if you hit TAB once more

Do not include special symbols or characters in file- and directory names. Such can be #, å, !, @. Do not use file- and directory names with an open space (instead of test file, use testfile or test_file)

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Resources

As always when it comes to computing and computer related things, there is a large amount of information available on the Web.

These sites may prove useful:

Brukerkurs i UNIX (norwegian)

Introduction to UNIX

UNIX Tutorial Center

Webopedia (english computer encyclopedia)

Dataleksikon (norwegian computer encyclopedia)

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This section includes a quiz on the topics covered by this module.

The quiz is meant as a control to see if you have learned some of the most important features

Hit object to start quiz (Depending on your connection, this may take a few seconds...)

Quiz

Shockwave Flash Object

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General information

Title: Introduction to Unix

Teacher(s): Professor Jon Kleppe

Assistant(s): Per Jørgen Dahl Svendsen

Abstract: Provide a good background for solving problems within petroleum related topics using numerical methods

4 keywords: Intro Unix, commands

Topic discipline:

Level: 1

Prerequisites: None

Learning goals: Introduce the user to Unix

Size in megabytes: 0.9 MB

Software requirements: MS Power Point 2002 or later, Flash Player 6.0

Estimated time to complete:

Copyright information: The author has copyright to the module and use of the content must be in agreement with the responsible author or in agreement with http://www.learningjournals.net.

About the author

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FAQ

For Questions, try these Computer encyclopedias:

Dataleksikon

Webopedia

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References

No specific references, for information, search the web for

unix tutorials or unix manuals etc.

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Summary

Subsequent to this module you should...

know the simplest commands, such as cd, mkdir, etc be able to work with the Unix interface Nobody can remember all the different commands,

use the help function