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Home: Perl Programming Help: Regular Expressions: STDIN & STDOUT

Pro_4 User Apr 24, 2001, 2:00 PM Post #1 of 8 (7776 views) STDIN & STDOUT Can't Post I read in a perl book that stdin and stdout take in information that is input through the keyboard. I understand the concept for using it on your computer programs but how about web applications? Is STDIN and STDOUT used in cgi programs on sites? Always add fun to Perl $fun = "fun"; $perl = "Perl"; print " Always add $fun to $perl"; die;

Jean User Apr 24, 2001, 11:02 PM Post #2 of 8 (7773 views) Re: STDIN & STDOUT [In reply to] Can't Post My guess is that STDIN and STDOUT are not applicable in other than console applications, though you can always redirect them, say, to a file and continue to use them even in cgi. Jean Spector QA Engineer @ Extent Technologies, Ltd. mage@lycosmail.com

Pro_4 User Apr 25, 2001, 11:58 AM Post #3 of 8 (7769 views) Re: STDIN & STDOUT [In reply to] Can't Post OK thats what it thought. Thanks for the info. :) Always add fun to Perl $fun = "fun"; $perl = "Perl"; print " Always add $fun to $perl"; die;

japhy Enthusiast / Moderator Apr 25, 2001, 3:42 PM Post #4 of 8 (7767 views) Re: STDIN & STDOUT [In reply to] Can't Post Where do you think you get POST query data from? Where do you think you print to? Jeff "japhy" Pinyan -- accomplished hacker, teacher, lecturer, and author

Pro_4 User Apr 26, 2001, 1:52 PM Post #5 of 8 (7763 views) Re: STDIN & STDOUT [In reply to] Can't Post Well.. that is why i asked the question.. so i could find out what it did do. :) Always add fun to Perl $fun = "fun"; $perl = "Perl"; print " Always add $fun to $perl"; die;

Jean User Apr 28, 2001, 11:20 PM Post #6 of 8 (7751 views) Re: STDIN & STDOUT [In reply to] Can't Post Sorry for misguiding you. I shouldn't have answered in the first place as I'm not familiar with CGI at all. The only "good" thing in my post is the word guess and that's what my aswer was - a guess :-( Jean Spector QA Engineer @ Extent Technologies, Ltd. mage@lycosmail.com

Pro_4 User Apr 29, 2001, 6:24 AM Post #7 of 8 (7750 views) Re: STDIN & STDOUT [In reply to] Can't Post It's not a problem. Atleast you attempted to answer my question. People Engrossed by a Reliable Language

localfilmmaker stranger May 8, 2001, 11:26 AM Post #8 of 8 (7722 views) Re: STDIN & STDOUT [In reply to] Can't Post STDIN, STDOUT, and STDERR are all used in CGI scripts as well as console programs. With CGI scripts, the web server that executes your CGI scripts will send all CGI params to you script's STDIN for it to read. And then it will get all output from the script's STDOUT and return it as the response to the browser. Depending on the web server, any errors or warnings printed to STDERR will either get printed with your STDOUT as part of the response, or it will be ignored or logged in a log file. That's how it usually works. -localfilmmaker Spencer Christensen spencer@mecworks.com

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