Introduction - In-class & Follow-up Activity

Part 1: Command Line Browsing

You have your user account on wyrd.hood.edu for this course. Wyrd is a PC running the Linux operating system and the Apache web server.

The Command Interpreter or Shell for an operating system lets the user command the system to perform various tasks such as log on and off the system, manage files and run utilities and application programs.

There is a summary of basic UNIX commands at http://wyrd.hood.edu/tutor/unix/unix.htm. We will talk about more of them later.

You can connect to wyrd by using

• HTTP (you're doing it right now, as you read this page in your web browser.)
• Secure Shell (SSH) terminal emulation
• Secure File Transfer(SFTP)

SSH and PuTTY secure clients are installed in the lab. You can use either to connect from on campus. You must use a secure connection.

Warning - UNIX COMMANDS ARE CASE SENSITIVE. This means that, for example, the command "ls" cannot be typed as
"Ls" or "lS" or "LS" , and the file name "UNIX.html" is different from unix.html and Unix.html.

1. Connecting to wyrd.hood.edu and logging in.
   1. To start a remote session from the lab machines, launch the Secure Shell or PuTTY Client application from the Start Menu. (The illustration show SSH.)
      
      
   2. After a brief delay, you should be prompted for your password. Warning: remember that passwords are case sensitive.
   3. Once your password is accepted, you will see a welcome message and a command prompt. The prompt shows your identification followed by a $.

          
            Logging on indicates acceptance of the acceptable use
            policies posted at http://wyrd.hood.edu/.  If you do not accept these
            policies, log off immediately.
            
            [echang@wyrd echang]$
           
      

2. Browse with Lynx You don't need graphics to browse the web.
   • Invoke the line-mode browser lynx (command lynx).
   • Look over the instructions and list of menu choices on the bottom three lines of the screen.
   • TO BROWSE TO A URL: press G and then type in the FULL URL. With Lynx, you must begin with HTTP.
   • Visit the wyrd index page - press G and enter the URL http://wyrd.hood.edu/.
   • Select the page for this course.

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Part 2: Web Scavenger Hunt!

Instructions

You can team up with a partner.

Keep notes. You will write a report on this exercise. You will begin in class, but will need to finish later.

For each item, using only the allowed browser

• begin at the designated starting page
• use only the navigation provided on the site.
• Do not directly type in any other URL.
• navigate to the target page. Make notes along the way of what you did.
• write down the full URL of the page where you find the information
• briefly describe how you reached it
• if you gave up, explain why

For the first set of items, use only Lynx; for the second set, you may use any browser.

Note: In Lynx, the delete key shows your History List with the visited URLs.

Challenges

Set 1 - USE ONLY Lynx

1. • Start at http://www.hood.edu
   • Find Professor Boon's Fall 2008 office hours
2. • Start at http://www.hood.edu
   • Find the first announcement for this course on BLACKBOARD
3. • Start at http://amazon.com
   • Find the prices of three different books authored by Jakob Nielsen

Set 2 - Use any browser

1. • Start at http://cs.hood.edu/
   • Find the current per-credit cost for taking a graduate course.
2. • Start at http://www.hood.edu/
   • Find out what is needed to set up wired access to the Hood network..
3. • Start at http://www.bow-wowbooks.com/
   • Find location of the Children's event and Book signing on April 19, 2008.