Despite valiant attempts by the marketing departments of Microsoft and Sun, CGI is still the most commonly used architecture for creating dynamic content on the World Wide Web.
CGI is the “Common Gateway Interface” a very grand sounding name for something that is really very simple.
We’ll look at this in more detail soon, but first let’s ensure that we’ve got everything set up so that we can run CGI programs. In the interests of keeping this tutorial down to a manageable size, I’m going to have to assume that you already know something about programming in Perl. This script works on exactly the same principle as the last one, but we get the system time using the Perl function “localtime” and print that value.
This program looks a little more complex, but really it’s doing exactly the same thing as the previous example. The previous section told you just about all that you need to know about displaying output from CGI programs. HTML defines a number of input widgets which you can use to pass user data to a CGI program. This form contains a text input (for the name), a drop-down list (for the age), a pair of radio buttons (for the gender) and a set of checkboxes (for the list of hobbies.
Once again we’ve used CGI.pm to produce the HTML, but we’ve also used the same module to get our input.
Engadget RSS Feed - Weekly Technology Technology TechnologyWhy do chatbots suck?7 mins ago TechnologyOne chip to rule them all? Bonnie Roberts - The above photo was taken at Irene Latham's Poets in the Sky with Cupcakes, where Lynn Roberts (no kin) and I were pink twins. It’s nothing more than a protocol that defines how a web server can interact with an executable program to produce dynamic web pages. Just about every Linux distribution comes with a version of Apache which is by far the most common web server on the Internet. You can use just about any language to write CGI programs, but the majority of people seem to use Perl. There are only a couple of things that distinguish it from a standard Perl program that you’d run from the command line.
The web server will have arranged to capture any data written to STDOUT and to pass it back to the browser.
The added complexity comes purely from the fact that we have to display a complete HTML page.
In the standard Perl library there is a module called CGI.pm which allows you to “hide” all the HTML generation behind function calls. This is much the same set of widgets that you’ll be familiar with from any GUI application – text fields, radio buttons, checkboxes, pop-down menus and many others.
CGI.pm has a function called “param” which returns information about the data that has been passed to the script.
For example the “name” parameter returns the text that was typed into the text box called “name” and the “age” parameter returns whichever of the options in the “age” drop down menu was selected.
A I am promoting Lynn's new book, SOULS to KEEP, the cover of which is on the front of our spiffy pink sweat shirts, provided to us by Lynn's guy, David.
This first tutorial looks at the basics of CGI programming.This article was originally published by Linux Format in April 2001.


It defines how the web server sends information to the program and how the program can send information back to the web server which the web server will, in turn, send back to the browser. In this series of tutorials we’ll assume that you’re using Apache, but the examples should work just as well on any other web server. If not, read the boxout section on debugging CGI programs to get help tracking down the problem. All CGI programs should output a set of headers which the web server will pass back to the user’s browser.
Also note that we have changed the content type to reflect the fact that we are now returning HTML. This loads the CGI.pm module and asks Perl to import a standard set of functions from that module into our program. Called without any parameters, “param” will return a list of all of the parameter names and when given the name of a parameter it will return the value associated with that name. See the box “Getting, Installing and Configuring Apache” for more details on how to set Apache up on your system.
Perl also comes as a standard part of every Linux distribution, so you’ll already have it installed. In this mode Perl will automatically distrust any data that comes from the user and won’t let you pass that data to the operating system until you have untainted it.
We’ll see why taint mode is a good idea and how to untaint data in next month’s article, but in the meantime it’s just a good habit to get into. Notice that it takes an optional argument which defines the contents of the <title> tag. A I need pink to brighten up my face, and I love looking like a pink popsicle and don't mind as long as Lynn looks like one, too.
This is achieved by printing two newline characters after the final (or, in this case, only) header. A It IS unusual, Irene, to have a new collection launch and reading in a Pumping Station Museum, but, hey--I like it.
A Here she is reading a poetic sky passage from SOULS to KEEP at Irene's launch of her latest poetry collection THE SKY BETWEEN US. Lynn Roberts read a poetic "sky" passage from her new novel during "open mic." A For those living in Birmingham, Alabama, you can now purchase a copy of Lynn's novel at Jim Reed's bookstore! A Thank you, Irene, for such a creative, fun way of launching your book that gave so many of us a chance to share our poetry as well. A Irene treated many of her poet and writer friends by launching her new book with a "POETS in the SKY with CUPCAKES" celebration at a most unusual site, the Historic Cahaba Pumping Station Museum in Birmingham.
A If you want to find out how something that looks like a thunderstorm, feels like a thunderstorms, bends cornstalks in wind like a thunderstorm, is complete with "shredded clouds" and lightning strikes like a thunderstorm, but isn't EVEN a thunderstorm, read the book.
A It's a very good read, and you'll learn something about being an imperfect human and how it's okay, and, in fact, the kind of soul you want to keep.A I'm putting the last touches on Harry's book. A Reading through it tonight, I kept thinking, "What an amazing poet, an amazing human being." A Not all amazing poets are amazing human beings. A You would think poets would be, but some are just word crafters, and not people of love, insight, and inspiration. A  I learned something from every man I met or exchanged emails with, and Lou taught me a few words in Spanish.A  Ole!


A I think Mule on a Ferris Wheel is only going to publish people and poets like Harry and Jimmy. A Here in all its messiness, happiness, and occasional tumult is family life, the world of parents and children, of marriages ended and new ones begun, of the next generation claiming its place.
A Looking at the different roles he has filled--husband, father, grandfather--the man in these poems cherishes and celebrates love while acknowledging the pain it can bring. A His 54-page thesis, "Travel for Agorophobics" will be published by Aldrich Press and out by next year! We can take a little walk, maybe get our feet wet, and then lie on a blanket and listen to the waves.
Murphy states that 90% of individuals polled have said they would prefer to die at home, surrounded by their loved ones. Murphy offers a view of death as something other than a "medical event" that need not take place in a sterile hospital and that the time before dying and death itself can be an important part of living in which closure, love, and forgiveness can take place and plans for what the dying person wishes must be put into writing for doctors, other caregivers, and family members.A  The book's scope is far wider than these elements in taking a whole new look at dying and death. We can't even imagine what the landscape of Alabama literature would be, would have been without you and your labors of love in poetry.A  Congratulations!
I do the same thing myself, when the mood strikes.A  And how about this for being an "in tune with women" kinda guy?A  A few days after I had ordered myself 2 new green dresses and several in black to add to my collection from a mail order company named Newport News, he sent an email asking:A  "So, what are you wearing right now? Bill Wilson, consultant with the Center for Congregational Health in Winston-Salem, will present on "The Realities of Ministry in the 21st Century." Lots of discussion and dialogue!
A  For Christ Sake!!A  How about saving the Taxpayers a buck?A  In addition to that $6 million you've already blown by hovering and covering me, and scheduling a proper Face to Base meeting in your office; at my convenience? A I need pink to brighten up my face, and I love looking like a pink popsicle and don't mind as long as Lynn looks like one, too. A Here she is reading a poetic sky passage from SOULS to KEEP at Irene's launch of her latest poetry collection THE SKY BETWEEN US. Dramatic, but no drama.A  Short black skirt, or long black dress?A  Heels or boots?A  Camo, or commando?
Until then, as in the end,there is much more to come.A A A  Once Upon a Time, a little mushroom popped through the moss covered ground of the Southeast Alaska Rainforest. A His 54-page thesis, "Travel for Agorophobics" will be published by Aldrich Press and out by next year! Grant, Attorney at Law, Juneau, AK From Wedding Bells to Tales to Tell: The Affidavit of Eric William Swanson, my former spouse AFFIDAVIT OF SHANNON MARIE MCCORMICK, My Former Best Friend THE AFFIDAVIT OF VALERIE BRITTINA ROSE, My daughter, aged 21 THE BEAGLE BRAYS! We can't even imagine what the landscape of Alabama literature would be, would have been without you and your labors of love in poetry.A  Congratulations!
Malm's Grief Retreat following the death of my mother in 2002, and found it to be extraordinarily helpful in my own grief process. HELL'S BELLS: THE TELLS OF THE ELVES RING LOUD AND CLEAR IDENTITY THEFT, MISINFORMATION, AND THE GETTING THE INFAMOUS RUNAROUND Double Entendre and DoubleSpeak, Innuendos and Intimidation, Coercion v Common Sense, Komply (with a K) v Knowledge = DDIICCKK; Who's Gunna Call it a Draw?




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