Can you look in your Web server's error log to see what error message you're getting?

If it's a resource issue, running 

  ulimit -a

[download]
from your Perl script or a short shell script run as a CGI program might give you some insight.

In fact, why don't you run this as a CGI script and see what you get? 

#!/bin/sh -x

printf "Content-type: text/plain\n\n"
exec 2>&1
id
ulimit -a
env

[download]
This often gives me great clues in fixing CGI scripts.

Another trick is to write a short wrapper for your script to see what errors it's getting: 

#!/bin/sh -x

printf "Content-type: text/plain\n\n"
exec 2>&1
/path/to/your/CGI/script

[download]
Installing this as a CGI script and running it will display all output from your program in plain text format, including any errors it generates.

In reply to Re: Calling "lyx -e latex" from perl CGI-script by sgifford
in thread Calling "lyx -e latex" from perl CGI-script by bgprior

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.