A CGI script can't ask for input, it has to receive it in the first place, i.e. given by an HTML page web form. If it doesn't receive the input it wants, it should print a warning and quit.
Hitting submit on this webpage will cause it to load a URL like http://mysite/cgi-bin/myscript.cgi?somevalue1=asdf&somevalue2=qwerty . The method="get" is important, since POST requests work differently.
The entire string somevalue1=asdf&somevalue2=qwerty will be found in QUERY_STRING which you can process as you please. I often do something like:
...which will leave $1 as "somevalue1", $2 as "asdf", $3 as "somevalue2", and $4 as "qwerty". set -- is a special, ancient syntax which sets the shell's $1 $2 ... argument variables, and IFS is a special variable which controls what characters the shell splits on - usually spaces, but here we use it to split the CGI string on ampersands and equals.
You can process that in a loop like
Last edited by Corona688; 05-29-2017 at 12:54 PM..
Hi,
My server is set up so that all cgi scripts are run as user nobody, instead of the user's username.
Now I know you can use cgi-wrappers, but someone please give me detailed information, on how to make ALL scripts run on the server to by default, run as the user? And not to run as user... (1 Reply)
If I have a Perl CGI script (script01), which fills an array(s) with information and outputs a HTML page with a link to another CGI page (script02); is there anyway to pass the array(s) from "script01" to "script02" when the page visitor clicks the link?
Hope that makes sense!
:) (2 Replies)
Hi,
I'm developing a system which requires me to run a ksh script from within a cgi script. What sort of syntax will I need to do this, I'm sure it's simple but can't find out how anywhere!
Thanks. (2 Replies)
All,
I would like to run a cgi script in cygwin which i have installed in WinXP.
My CYGWIN directory structure is
/var/www/
drwxrwx---+ 2 user Users 0 Nov 23 16:24 cgi-bin
drwxrwx---+ 3 user Users 0 Oct 22 17:21 htdocs
drwxrwx---+ 3 user Users 0 Oct 22 17:22 icons
and another... (1 Reply)
Hi guys,
got a problem with a perl cgi script over here. I need it to run a system command to get the status of a process. Unfortunately the process is owned by a specific user and only this user can get its status. So i tried running the command from the perl cgi with "su", but then i get the... (12 Replies)
I have interesting problem.
https:/host/some/x.cgi
- this script has run twice when I call this url
But
http:/host/some/x.cgi
work fine, only once.
Output is text/plain.
If I change output format to the Content-type text/html,
then both urls works fine - executed only once. (2 Replies)
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!
1. The problem statement, all variables and given/known data:
This is a problem I am having with my 2 semester senior project. I have a LAMP server running Ubuntu 9.10 with... (8 Replies)
Hi
I am Run Perl CGI Script. In which i am running SCP Command. But I want that command to be run into background and exit the script. But Still Web page waiting for Finish the script.
I m doing like :
system ("scp -r machinename:/path/to/file/for/copy/ /path/for/ destination/directory/ &");... (3 Replies)
Hi everyone,
I want to kill process through the web, so I create html page with single bottom that run kill command in shell script with CGI.
Here is html code:
<td><form METHOD="GET" action="http://IP:port/cgi_bin/script.cgi" > <input type="submit" value= "Submit" > <INPUT name="q"... (7 Replies)
Hello,
I want to run this script on my CentOS 6 via browser :
________________________________________________________________________________________________
#!/bin/sh
echo Username?
read MY_NAME
echo Provisional file name?
read MY_FILE
echo File NAME you want to save?
read MY_FILE2... (16 Replies)
Discussion started by: juta2020
16 Replies
LEARN ABOUT DEBIAN
speedy_backend
SPEEDY_BACKEND(1p)SPEEDY_BACKEND(1p)NAME
speedy_backend - the backend process for a persistent Perl interpreter
SYNOPSIS
none ; this program is not meant to be called directly.
DESCRIPTION
speedy, short for SpeedyCGI, is a way to run perl scripts persistently, which can make them run much more quickly.
After the script is initially run, instead of exiting, the perl interpreter is kept running inside a backend process, speedy_backend. Dur-
ing subsequent runs, this interpreter is used to handle new executions instead of starting a new perl interpreter each time. A very fast
frontend program, speedy, written in C, is executed for each request. This fast frontend then contacts the persistent Perl process, which
is usually already running, to do the work and return the results.
Each perl script runs in its own Unix process, so one perl script can't interfere with another. Command line options can also be used to
deal with programs that have memory leaks or other problems that might keep them from otherwise running persistently.
The speedy front end connects to the back end process, speedy_backend, via a Unix socket in /tmp. A queue is kept in a shared file in /tmp
that holds an entry for each process. In that queue are the pids of the perl processes waiting for connections. The frontend pulls a
process out of this queue, connects to its socket, sends over the environment and argv, and then uses this socket for stdin/stdout to the
perl process.
FILES
/tmp/speedy* A unix socket used to connect to the frontend process.
AUTHOR
Sam Horrocks
http://daemoninc.com
sam@daemoninc.com
NOTES
This manual page was created by Niko Tyni <ntyni@iki.fi> for Debian GNU/Linux, because the original program does not have one. It is based
on the original and more complete CGI::SpeedyCGI(3pm) manual page.
SEE ALSO perl(1), CGI::SpeedyCGI(3pm), speedy(1)SPEEDY_BACKEND(1p)