Lecture 5: Still more Perl and CGI scripts

• Grabbing web documents with a unix script (i.e., automated access without a browser)

• Developing multi-part dialogs with a user (and remembering previous answers

• Generating on-the-fly graphics

• Restricting access to your page(s)

• Starting long jobs, and disconnecting from the browser

• Manipulating web documents from a unix script
  
• Getting LWP
  
• Getting a document from the web
  
• A better way to set the Expires: tag
  
• Maintaining state
  
• More on maintaining state
  
• On-the-fly graphics
  
• More on-the-fly graphics
  
• Generating graphics in perl
  
• A look at gd
  
• Restricting access to your page
  
• Bypassing the server
  
• 'nph-' is the prefix you need
  
• Letting go of the browser
  
• Here's a cgi script that starts a long job
  
• The End
  

(This group of documents can be accessed as a single file at big-lecture5.html in this directory.)