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Top Forums Shell Programming and Scripting Perl script 'system' linking to local shell script not working Post 302362415 by pludi on Friday 16th of October 2009 02:53:14 AM
Old 10-16-2009
$? is a variable that holds the return code of the last system command, pipes, ..., pretty much the same as in the shell. By inspecting that you can check if your command succeded or not.

As for your 'hellow' script, your user might have the path to it in it's environment. But the user the webserver is running as (www) most probably doesn't. So it's always a good idea to use the absolute path, and ensure that the user 'www' has read & execute rights on the file. If you still have problems, add the 'holy trinity' to your script, and run it on the command line.
Code:
# The 'holy trinity'
use strict;
use warnings;
use diagnostics;

As for Perl spinning out of control: it might have to do with the unchecked open. I left out the success check in my examples for brevity, but you should always check the return code of it.
 

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Web::Simple::Deployment(3pm)				User Contributed Perl Documentation			      Web::Simple::Deployment(3pm)

NAME
Web::Simple::Deployment - various deployment options DESCRIPTION
This file documents common deployment methods for Web::Simple. If you feel one is missing, please ask in the IRC channel and we'll work with you to add it. CGI
The most basic deployment option is as a CGI script loading and running your Web::Simple-module: #!/usr/bin/env perl use Your::Web::Simple::App; Your::Web::Simple::App->run_if_script; Save that as script.cgi and your web server will handle it correctly. Plack-Server This works in with exactly the same code as CGI deployment. However instead of letting your web server load script.cgi, you run this on the command line: plackup script.cgi Self-contained CGI Sometimes your app is so small that you have only one or two tiny classes that you want to run as a CGI script. Web::Simple offers a helpful mechanism to achieve that. #!/usr/bin/env perl use Web::Simple 'HelloWorld'; # enables strictures and warnings for the file # additionally, HelloWorld is upgraded to a # Web::Simple application { package HelloWorld; sub dispatch_request { sub (GET) { [ 200, [ 'Content-type', 'text/plain' ], [ 'Hello world! It is a fine ' . HelloWorld::Helper->day ] ] }, sub () { [ 405, [ 'Content-type', 'text/plain' ], [ 'Method not allowed' ] ] } } } { package HelloWorld::Helper; use DateTime; sub day { return DateTime->now->day_name; } } HelloWorld->run_if_script; AUTHORS
See Web::Simple for authors. COPYRIGHT AND LICENSE
See Web::Simple for the copyright and license. perl v5.14.2 2012-05-07 Web::Simple::Deployment(3pm)
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