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 Adobe Acrobat Professional ($35) Microsoft Office ($0) ArcView ($10)MiniTab ($5) Clementine ($10)Norton Anti-Virus ($0) EndNote ($5)Oracle ($5) MathCad ($5)SAS ($10) Mathematica ($10)S-Plus ($10) MatLab ($10)SPSS ($10) Software Licensing at Pitt

CSSD Student Toolkit CD

Students, faculty and staff have access to the Pitt network, including: an 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 , hardware, software, networking, ResNet, University Computer Accounts, computing labs, and other services. Help desk 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 address = pitt.edu mcs2 is my username is my address mcs2 is my UNIX username Pitt Maintains Unix Mainframe Computers

Not as easy to use, therefore less popular But 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 ( c hange d irectory) You can go down the directory tree by typing cd You can go up one level with cd.. UNIX uses a Hierarchical File system

Your Home directory should have directories called public and private File access is controlled at the directory level Web pages must be in your public directory Anyone can read the contents of your public directory Directory Access

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 pages Create your own web page Address will be In-Class Exercise

The command for creating a new directory is mkdir To remove a directory, the command is rmdir A directory MUST be empty before it can be removed How do you make and remove a 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 in the hierarchy. The path to file3 is dir1/dirB/file3 Separator for directories is a forward slash / What’s a path?

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 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 protocol) Browsers read html files (hypertext markup language) What’s a Web Page?

HTML uses tags tags are enclosed in (less than and greater than signs <>) = start bold text = stop bold text HTML Basics

BOLD italics underline Headings: Biggest Big Not so Big.... etc HTML Basics

A Very Basic Web Page This is my web page!

Another Basic Web Page Martin’s Page This is my web page!

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 Make your own page

Pitt Home page complete address (URL) = Link on your page will say “Pitt Home page” Add a link to your page

tag needs a source of the image, usually a.gif or.jpg file here’s one from the Pitt web page Add an image to your page

View source !! How do you borrow (steal) from other sites?

View sample web pages on your browsers View 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 The name for this web page must be welcome.html Make Your Own Web Page

Go to your home directory cd Go to public/html cd public/html Create welcome.html pico welcome.html Make Your Own Web Page

Connect to your UNIX account using an FTP program Transfer the image file as “Raw Data” Add the image to your page with the tag Add an Image to Your Web Page