September 2002
Intermediate to advanced
544 pages
13h 6m
English
Content preview from Sams Teach Yourself CGI in 24 Hours, Second Edition
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Working with Query Strings
As an alternative to processing form data, you can work with raw query strings in your shell CGI programs. When you execute a script from the shell prompt, the arguments passed to the script are made available in numbered environment variables. The first argument to the script is stored in $1, the second in $2, and so on. The query string in a request for a CGI program is passed to that program as a command-line parameter. So, if you request the URL http://localhost/cgi-bin/test.sh?foo, the $1 variable will be set to foo.
Sending multiple arguments is easy, too. All you have to do is separate each argument with a space. You can URL-encode the spaces in one of two ways. Web servers will convert plusses into spaces. ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.