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Full Discussion: System call in CGI not work
Top Forums Shell Programming and Scripting System call in CGI not work Post 302159047 by tqlam on Thursday 17th of January 2008 01:07:00 AM
Old 01-17-2008
System call in CGI not work

I have a cgi script that calls a perl script (A.pl) to do something in backgroup, when run that perl script in command everything works fine, but when it calls by the CGI script, nothing works. I have tried another perl script (B.pl not cgi) calls A.pl, and it works fine.
The A.pl is chmod 777,

Can someone here help?

Thank you!


Here is my cgi calling A.pl:
#!/usr/bin/perl -w
#
use CGI;
$mycgi = new CGI;

print $mycgi->header;
print $mycgi->start_html(
-title=>'System Tes'',
-BGCOLOR=>'#FFFFCC');


# do something here

# system calls both don't work
system("/mypath/A.pl");

unless (system("/mypath/A.pl")) {
print "system calls failed: $!"; # not seeing this msg from browser
}


# print HTML message here, is seen from browser

print $mycgi->end_html;
exit;
 

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Template::Plugin::CGI(3pm)				User Contributed Perl Documentation				Template::Plugin::CGI(3pm)

NAME
Template::Plugin::CGI - Interface to the CGI module SYNOPSIS
[% USE CGI %] [% CGI.param('parameter') %] [% USE things = CGI %] [% things.param('name') %] # see CGI docs for other methods provided by the CGI object DESCRIPTION
This is a very simple Template Toolkit Plugin interface to the "CGI" module. A "CGI" object will be instantiated via the following directive: [% USE CGI %] "CGI" methods may then be called as follows: [% CGI.header %] [% CGI.param('parameter') %] An alias can be used to provide an alternate name by which the object should be identified. [% USE mycgi = CGI %] [% mycgi.start_form %] [% mycgi.popup_menu({ Name => 'Color' Values => [ 'Green' 'Black' 'Brown' ] }) %] Parenthesised parameters to the "USE" directive will be passed to the plugin constructor: [% USE cgiprm = CGI('uid=abw&name=Andy+Wardley') %] [% cgiprm.param('uid') %] METHODS
In addition to all the methods supported by the "CGI" module, this plugin defines the following. params() This method returns a reference to a hash of all the "CGI" parameters. Any parameters that have multiple values will be returned as lists. [% USE CGI('user=abw&item=foo&item=bar') %] [% CGI.params.user %] # abw [% CGI.params.item.join(', ') %] # foo, bar AUTHOR
Andy Wardley <abw@wardley.org> <http://wardley.org/> COPYRIGHT
Copyright (C) 1996-2007 Andy Wardley. All Rights Reserved. This module is free software; you can redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
Template::Plugin, CGI perl v5.14.2 2011-12-20 Template::Plugin::CGI(3pm)
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