Learn unix english lesson

Raise student awareness of computing resources available at the University of Pittsburgh Students will access their Unix account Student will create a web page on their Unix account

Computer Resources at Pitt and Introduction to the the Pitt Main Frame Computer

Raise student awareness of computing resources available at the University of Pittsburgh

Students will access their Unix account

Student will create a web page on their Unix

account that contains 2 links and one image file Students will learn how to move files with FTP

Class Objectives

Falk Library Benedum Hall Cathedral of Learning David Lawrence

Posvar Hall Hillman Library Sutherland Hall Alumni Hall

Computer Labs at Pitt

More info at http://technology.pitt.edu/software_hardware.html

Adobe Acrobat Professional ($35) Microsoft Office ($0)

CSSD Student Toolkit

CD

Students, faculty and staff have access to the Pitt network, including:

an email account and

a unix account

Computer Accounts

All Pitt faculty students and staff have access to the Pitt computer store Go there first to buy

Hardware and Software

Computer Store will help with configuration and installation

Computer Services

The Technology Help Desk is staffed 24 hours per day, 7 days per week (closed holidays) and serves as a single point of contact for all information technology services

University of Pittsburgh students , faculty and staff can

contact the Help Desk regarding any computer issue

including e-mail, hardware, software, networking, ResNet, University Computer Accounts, computing labs,

and other services

Help desk 624-4357

Technology Help Desk

Most Universities run mainframe (huge)

computers that use the unix operating system

If you’re a Pitt student you have a unix account Pitt maintains this account for you, backs up the data, keeps it running 24 hours a day, 7 days week

What’s a Unix Account?

Stable

Used by Main Frame Computers

Allows many users to have separate accounts

on the same machine

Used world wide for web servers

UNIX Operating

System

Maintained by University

Data backed up each night

Lots of free scientific software has been developed for Unix

Unix is the base for new OS’s for personal computers including Linux and Mac OSX

UNIX Operating

System

Student and Faculty have Unix accounts by default

email address = username @ pitt.edu

Not as easy to use, therefore less popularBut more powerful too!

UNIX is a Command

Line Environment

Maybe you shouldn’t but

Almost all bioinformatics processes are run

in a Unix environment

Lots of FREE software for DNA/protein

sequence analysis is available on Unix

Sharing data/images with colleagues and friends

Why Should I Bother

to Learn Unix?

Log on via Telnet ( HSLS programs > Internet aps > Telnet shortcuts > unixs)host = unixs.cis.pitt.edu

Enter username and password at prompt

ls command lists directories and files

How to Access your

Unix Account

When you log on, you are in your home

directory

You can always return to your home directory

by typing cd (change directory)

You can go down the directory tree by typing

cd <dirname>

You can go up one level with cd

UNIX uses a Hierarchical

File system

Your Home directory should have

directories called public and

Basic commands are listed on a web page under Tutorial #1

Everybody should log in to their accounts

Basic UNIX Commands

Create directory needed to host web pagesCreate your own web page

Address will be www.pitt.edu/~username

In-Class Exercise

The command for creating a new directory

Pitt allows web broswers to access web pages in your Unix account

Web pages must be inside a directory called ‘html’ that is located inside your

‘public’ directory

Create the ‘html’

Directory

log on to you Unix account

go inside public cd public

create new directory called html

mkdir html

go inside html cd html

Create the ‘html’

Directory

The path to a directory is

the listing of all directories

The path to your html directory is

public/html

The Unix OS keeps track of your ‘current working directory’

You can always get the complete path by

typing pwd (print working directory)

The abbreviation for the current directory

is ./

More on paths

Unix provides several text editors

The easiest to use is ‘pico’

To launch pico, type pico <file1>

If ‘file1’ already exists, you open it and can edit it If file1 does not exist, pico creates it

How do you create or

edit a text file?

Pico is a simple text editor

Typing text will enter it into the file

Use the arrow keys to move your cursor

pico commands are listed at the bottom and are invoked with the Cntl key

(^X = Cntl X)

Using PICO

Screen Shot of pico

More Pico

To exit a file, type Cntl-X (^X)

If the file (buffer) was modified, you will

be asked whether you want to save the

changes The answer is yes (y) or no (n)

You can save to a new name or OVERWRITE the existing name

Once a file is OVERWRITTEN on Unix,

there is no UNDO caution

More Pico: ^X

Web pages are text files that are meant to

be ‘rendered’ or formatted by a browser

Browsers use HTTP (hypertext transfer

HTML uses tags

tags are enclosed in <brackets>

(less than and greater than signs <>)

<b> = start bold text

</b> = stop bold text

HTML Basics

<i> italics </i>

<u> underline </u>

A Very Basic Web Page

<HTML>

This is my web page!

</HTML>

Another Basic Web

Make sure you are inside your public/html directory

Edit your page text with pico

Save your page as welcome.html

View your page with a browser The

address will be www.pitt.edu/~username

Make your own page

<a href=”http://www.pitt.edu”>Pitt Home page</a>

complete address (URL) = http://www.pitt.edu

Link on your page will say “Pitt Home page”

Add a link to your page

<img> tag needs a source of the image, usually a gif

View source !!

How do you borrow (steal) from other

sites?

View sample web pages on your browsersView source

Sample Web Pages

You can create complex web pages using

programs like Microsoft ‘FrontPage’

You can create web pages with Microsoft Word using the save as web page command

Complex Web Pages

Pitt allows you to host web pages in your

unix account - free

Your home directory for web pages is inside your public/html directory

The web address for public/html is

Go to your home directory cd

• Connect to your UNIX account using an FTP

program

• Transfer the image file as “Raw Data”

• Add the image to your page with the

<img src=“image.jpg”> tag

Add an Image to Your

Web Page