Creating a Multiple Choice Quiz System with CGI
Now that we have defined QuizQuestions, askquestion.pl and checkanswer.pl, all that remains is to create an HTML file that acts as the initial entrance into the quiz.
<HTML> <Head> <Title>Play our quiz!</Title> </Head> <Body> <H1>Play our quiz!</H1> <P>You can play our cranberry quiz by clicking <a href="/cgi-bin/askquestion.pl?cranberries"> here</a>.</P> </Body> </HTML>
Notice that the URL leading to the initial question must have a quiz name appended to it in the query string. Other than that, though, this is a simple HTML document.
This quiz appears to work pretty well so far, although there are certainly features that you might add—such as a scoreboard, better error-checking when reading the quiz file, or a system that ensures that users don't see the same question twice.
But more important than any of these is the fact that while the format of the question file is easy for programmers to understand, non-programmers who would like to add, delete or modify questions might find the format confusing. Next month we will work on making this system more author-friendly, so that non-programmers can modify entries in the question file via an HTML form.
Reuven M. Lerner has been playing with the Web since early 1993, when it seemed more like a fun toy than the World's Next Great Medium. He currently works as a independent Internet and Web consultant from his apartment in Haifa, Israel. When not working on the Web or volunteering in informal educational programs, he enjoys reading on just about any subject, but particularly politics and philosophy, cooking, solving crossword puzzles and hiking. You can reach him at firstname.lastname@example.org or email@example.com.
Practical Task Scheduling Deployment
One of the best things about the UNIX environment (aside from being stable and efficient) is the vast array of software tools available to help you do your job. Traditionally, a UNIX tool does only one thing, but does that one thing very well. For example, grep is very easy to use and can search vast amounts of data quickly. The find tool can find a particular file or files based on all kinds of criteria. It's pretty easy to string these tools together to build even more powerful tools, such as a tool that finds all of the .log files in the /home directory and searches each one for a particular entry. This erector-set mentality allows UNIX system administrators to seem to always have the right tool for the job.
Cron traditionally has been considered another such a tool for job scheduling, but is it enough? This webinar considers that very question. The first part builds on a previous Geek Guide, Beyond Cron, and briefly describes how to know when it might be time to consider upgrading your job scheduling infrastructure. The second part presents an actual planning and implementation framework.
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- Non-Linux FOSS: Caffeine!
- SUSE LLC's SUSE Manager
- Managing Linux Using Puppet
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With all the industry talk about the benefits of Linux on Power and all the performance advantages offered by its open architecture, you may be considering a move in that direction. If you are thinking about analytics, big data and cloud computing, you would be right to evaluate Power. The idea of using commodity x86 hardware and replacing it every three years is an outdated cost model. It doesn’t consider the total cost of ownership, and it doesn’t consider the advantage of real processing power, high-availability and multithreading like a demon.
This ebook takes a look at some of the practical applications of the Linux on Power platform and ways you might bring all the performance power of this open architecture to bear for your organization. There are no smoke and mirrors here—just hard, cold, empirical evidence provided by independent sources. I also consider some innovative ways Linux on Power will be used in the future.Get the Guide