UNIX

What is UNIX?

Unix (officially trademarked as UNIX, sometimes also written as Unix with small caps) is a computer operating system originally developed in 1969 by a group of AT&T employees at Bell Labs, including Ken Thompson, Dennis Ritchie, Douglas McIlroy, and Joe Ossanna. Today's Unix systems are split into various branches, developed over time by AT&T as well as various commercial vendors and non-profit organizations.

As of 2007, the owner of the trademark is The Open Group, an industry standards consortium. Only systems fully compliant with and certified to the Single UNIX Specification are qualified to use the trademark; others are called "Unix system-like" or "Unix-like".

 

A beginners guide to the Unix and Linux operating system by M.Stonebank.

This Tutorial applies to: All

This Tutorial is intended for: Beginner

http://www.linux.co.uk/docs/center/tutorial/unix-tutorial-for-beginners

 

10 steps to UNIX nirvana - Time-saving tips and tools for C++ developers

this article provides 10 effective methods that can increase your productivity. The examples in this article use tcsh version 6 as a reference, but the ideas are portable to all variants of UNIX® shells. This article also refers to several open source tools available for the UNIX platform.

http://www.ibm.com/developerworks/aix/library/au-aixnirvana/index.html?S_TACT=105AGX20&S_CMP=EDU

 

Unix Articles

http://librenix.com/?page=Unix

 

Unix Articles  like

Variables Within the UNIX Shell

Control Mechanisms of the UNIX Shell

UNIX File Systems

The Shell and UNIX e.t.c

 

Unix Video Tutorials

 

Unix Shell and Programming Video Tutorials

 

UNIX Tutorial for Beginners

http://www.ee.surrey.ac.uk/Teaching/Unix/

 

Basic Unix Commands

http://www.unixtutorial.org/basic-unix-commands/

 

Unix for beginner

http://adminschoice.com/Wp/topics/unix-for-beginner/

 

UNIX Coding School - UNIX Code, UNIX Examples, UNIX Demos, UNIX Tutorials

http://unix.coding-school.com/

 

Unix Tools - unix tutorials, unix security, unix help

http://www.unixtools.com/tutorials.html

 

A Basic UNIX Tutorial

http://snap.nlc.dcccd.edu/learn/idaho/unixindex.html

Tutorials

http://www.webreference.com/programming/unix/

 

Steve's Bourne / Bash shell scripting tutorial

http://steve-parker.org/sh/sh.shtml

 

UNIX Tutorial By Heather Sherman, Roger Murray

http://www.imss.caltech.edu/cms.php?op=wiki&wiki_op=view&id=324

 

This page gives an overview of UNIX basics for those who are unfamiliar with them.

http://www.molecularevolution.org/si/resources/computing.php

 

UNIX Tutorial for Beginners

http://www.open-of-course.org/courses/course/view.php?id=45

 

Understanding UNIX permissions and chmod

http://www.perlfect.com/articles/chmod.shtml

 

Unix-Linux Shell Scripting Tutorial

A good detailed tutorial for beginners to understand the basics of shell scripting. But experienced "scriptors" find this useful also. It starts from the history of sh shell, and contains details about using variables,

http://www.scribd.com/doc/10247299/UnixLinux-Shell-Scripting-Tutorial

 

UNIX Tutorials

http://www.academictutorials.com/unix/

 

http://www2.ocean.washington.edu/unix.tutorial.html

 

Below site contains:

Part I (Beginning) : Introduction to the shell, overview of the UNIX filesystem, file management, file editing, file permissions, printing, and other goodies.

Part II (Intermediate): Shell customization, input/output redirection, pipes, process management.

http://people.ischool.berkeley.edu/~kevin/unix-tutorial/toc.html

 

http://www.ece-help.gatech.edu/unix/tutorial/index.html

 

http://www.trailstone.com/softdeve/tutorial/tutorial.html

 

http://www.math.utah.edu/lab/unix/unix-tutorial.html

 

http://www.december.com/unix/tutor/startup.html

 

http://seismo.berkeley.edu/~rallen/resources/unixtut/

 

Norman Matloff's Unix and Linux Tutorial Center

http://heather.cs.ucdavis.edu/~matloff/unix.html

 

Quick Unix Tutorial

http://www.unl.csi.cuny.edu/tutorials/QuickUnixTutorial.html

 

Unix Manuals

http://www.unix-manuals.com/tutorials/unix/unix.html

 

Unix help for users

http://www.haifa.ac.il/cc/Unixhelp/TOP_.html

 

UNIX network analysis tutorial

http://librenix.com/?inode=13471

 

Unix Makefile Tutorial

http://www.tutorialspoint.com/makefile/index.htm

 

The following lesson plans were developed by Ian Mapleson as part of a 3-day UNIX administration course in 1999.

http://ivis.eps.pitt.edu/unix/index.html

 

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Blogs :

Introduction to Unix

http://ircdiary.blogspot.com/2009/04/introduction-to-unix.html

 

Some useful UNIX command

http://kyfoo2004.blogspot.com/2009/05/some-useful-unix-command.html

 

A Unix System Administrator’s Blog

http://www.sysadmindayph.com/blog/unix-one-liners-some-useful-shell-programs/

 

Unix Shell and Programming Tutorial

http://fastrevision.blogspot.com/2009/03/unix-shell-and-programming-tutorial.html

 

GRE - Graduate Record Examination

GRE® General Test Overview

GRE(Graduate Record Examination) Fee Details

GRE - How to Register for the test?

GRE Test Centers and Dates

Free GRE General Test Preparation Materials

Free GRE Practice Tests

Free GRE Material

Free GRE Practice Tests

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GRE Test Centers and Dates

Code Lists

GRE® Test Center and Code Lists (PDF): Contains the following lists:

• Computer-Based and Paper-Based Test Center Lists
• Computer-Based Test International Regional Registration Centers
• Institution Codes and Fellowship Sponsors
• Department and Major Field Codes
• Citizenship and Country or Region Codes
• State and Territory Codes  

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                                       GRE Test Dates

Computer-Based General Test

* The General Test is given year-round at computer-based test centers in the U.S., Canada, and many other countries.

 * Appointments are scheduled on a first-come, first-served basis.

 *You may take the General Test (computer-based and/or paper-based) only once per calendar month, and no more than five times within any 12-month period. This applies even if you canceled your scores on a test taken previously.

*To register to test in the U. S., American Samoa, Guam, U. S. Virgin Islands, Puerto Rico, and Canada, register online or call 1-443-751-4820 or 1-800-GRE-CALL (1-800-473-2255). To register to test at an international location, register online or contact the appropriate Regional Registration Center. REGISTER EARLY TO GET YOUR PREFERRED TEST DATE.

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Paper-Based General Test

• Paper-based General Test administrations are offered in areas where computer-based testing is not available.
• Not all test centers are open on all test dates. Download the Test Center List (PDF) for testing locations.
• Be sure to check the score report mailing date when selecting a test date.

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Test centers and accepting institutions (PDF)

Free GRE General Test Preparation Materials

GRE Powerprep® Software — Includes two computer-based GRE General Tests, sample Analytical Writing topics, scored sample essays and reader commentary, test-taking strategies, a math review, and test tutorials. It is sent to individuals who register for the computer-based General Test, or may be downloaded here.

• View frequently asked questions about Powerprep
• Read Powerprep download instructions
• Read Powerprep installation instructions

GRE Practice General Test — Contains one full-length paper-based GRE General Test, test-taking strategies, sample Verbal and Quantitative questions with explanations, sample Analytical Writing topics, and scored sample essays and reader commentary. It is sent to individuals who register for the paper-based GRE General Test or may be downloaded here.

An Introduction to the Analytical Writing Section of the GRE General Test — Contains a description of the Analytical Writing section, strategies for each task, directions, scoring information, scoring guides, score level descriptions, a sample test, and scored essay responses with reader commentary.

Issue topics and Argument topics are available for review.

Preparing for the Verbal and Quantitative Sections of the GRE General Test - Contains sample questions with explanations.

Math Review — Contains information on the mathematical skills and concepts likely to be tested on the GRE General Test.

Test-taking Strategies for the computer-based and the paper-based General Test.

Other Useful Sites

GRE

This website is provided by the Educational Testing Services, which is the organization that creates the GRE tests. It has a lot of great information about the test, test registration, test takers with disabilities, test preparation, scores and score reporting, services, and educator information.

Educational Testing Services (ETS)

This website is provided by the ETS, which is the organization that creates the GRE tests. It has a lot of great general information about different tests.

GRE Guide & Free tests

This website provides Free GRE practice tests and GRE test experiences.

GRE Practice Questions

Kaplan's Free Practice GRE

Barron GRE word list

Free GRE Online Demo and Practice Test- The Princeton Review

GRE* Test Prep - Yahoo! Education

This website provides an overview of the GRE as well as practice questions. It will help you with all aspects of the test.

Number2 Test Prep Website

This website provides free college test preps, including one for the GRE. It will help you with all aspects of the test.

GRE Math Study Session

In-depth review for the math part of the general GRE test by The WTAMU Graduate School.

Prepare for the GRE - MajorTests

GRE Test Prep - GRE Courses & Preparation

Other For Vocabulary

VocabAhead Study Room provides a distraction free environment with over 1000 difficult words explained using Vocabulary Videos and Flash Cards.

http://vocabahead.com/

A Vocabulary Challenge Tale

Goldilocks and the Three Bears Vocabulary Challenge

Blog:

http://gre-toefl-ielts.blogspot.com/

GRE - How to Register for the test?

Register to Test in the U.S, U.S. Territory, or Canada

There are three ways you can register for the computer-based General Test.

Web

• Online Registration (credit card only)

Phone

• Use American Express, Discover, JCB, MasterCard, VISA, or a voucher number.
• Call the test center directly or the Prometric® Candidate Services Call Center Monday through Friday, 8 a.m. - 8 p.m., Eastern Time (New York), (excluding U.S. holidays), at 1-443-751-4820 or 1-800-GRE-CALL (1-800-473-2255).
• A confirmation number, reporting time, and the test center address will be given to you when you call.

Mail

• Download and complete the Authorization Voucher Request Form (PDF) found in the Bulletin.
• Mail the appropriate payment and voucher request form to the address printed on the voucher, allowing up to four weeks for processing and mail delivery.
• When you receive your voucher, call to schedule an appointment.
• An appointment to test must be made prior to the expiration date on the voucher.
• If you lose your voucher, contact the GRE® Program. Only one replacement will be issued.

Register to Test in International Locations

The computer-based General Test is not given every day at all test centers. Contact the appropriate Regional Registration Center (RRC) to verify test dates.

There are four ways you can register for the computer-based General Test.

Web

• Online Registration (credit card only) - Not available in Nigeria.

Phone

• Use American Express, Discover, JCB, MasterCard, VISA, or a voucher number.
• Call the appropriate RRC at least two business days before your preferred test date.
• A confirmation number, reporting time, and the test center address will be given to you when you call.

Fax 

• Use American Express, Discover, JCB, MasterCard, VISA, or a voucher number.
• Fax the International Test Scheduling Form (PDF) to the appropriate RRC.
• The form must be received at least seven days before your first-choice test date.
• A confirmation number, reporting time, and the test center address will be faxed or mailed to you.
• If you do not receive a confirmation of your appointment, call the appropriate RRC at least three business days before your first-choice test date. If you missed your appointment and did not call the RRC, your test fee will not be refunded. If you provide an e-mail address, you may receive a confirmation by e-mail.

Mail

• Mail the International Test Scheduling Form (PDF) to the appropriate RRC with appropriate payment.
• ETS® now accepts payments via the Western Union^® Quick Pay^SM service for computer-based testing administrations. Only original receipts will be accepted by Prometric.
  • Instructions on how to send a Quick Pay. 
  • Locate an agent in your country.
  • When completing the payment services or blue form, please use the following codes under the "Pay To" section:
    
    Company Name: Educational Testing Service
    Company Code: GREPROGRAM NJ
    Country: USA
    
• The form must be received at least three weeks before your first-choice test date.
• A confirmation number, reporting time, and the test center address will be faxed or mailed to you.
• If you do not receive a confirmation, call the appropriate RRC at least three business days before your first-choice test date. If you miss your appointment and did not call the RRC, your test fee will not be refunded. If you provide an e-mail address, you may receive a confirmation by e-mail.

For complete information click here.

GRE(Graduate Record Examination) Fee Details

Fees for Tests and Related Services. 

Note: Click on the image for clear view.

Preferred Forms of Payment For Computer-based Tests

•Credit Card (American Express®, Discover®, JCB®, MasterCard®, and VISA®) 

•Money Order/Certified Check/Voucher 

Preferred Forms of Payment For Paper-based Tests

•Credit Card (American Express, Discover, JCB, MasterCard, and VISA) 

•Money Order/Certified Check/Voucher 

•UNESCO Coupons 

•Western Union® Quick PaySM – when completing the form, use the following under "Pay To:" Company Name: Educational Testing Service; Company Code: GREPROGRAM NJ; Country: USA. Include your original Western Union Quick Pay Receipt with your form. Copies or facsimiles WILL NOT BE ACCEPTED as valid payment. 

Other Forms of Payment

•Do not send cash. 

•Payments may also be made by check. Make payable to ETS®-GRE®.

If paying by check, please note the following: 

◦Bank name and its address should be preprinted on the face of the check. 

◦Check must have a preprinted check number. 

◦Check must include candidate or payee name and address. 

◦Check date CANNOT be over 90 days old. 

◦New bank account starter checks missing the preprinted name and address are not acceptable. 

•Payments that are not made in U.S. dollars must be made in the following acceptable currencies at the Telegraphic Transfer Selling (TTS) exchange rate of the U.S. dollar equivalent. 

•Australian dollar 

•British pound 

•Canadian dollar 

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•Euro 

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•Japanese yen 

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•Norwegian kroner 

•Singapore dollar 

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