Good stuff! I just wanted to stress the importance of adding the following line to your CGI script while debugging:
Now all fatal errors are echoed to the browser as well as the error log file. This is a must if you can't view the web server's error log. If that is the case, then perl -cw foo.cgi is also a must.
Also, if you find yourself on a foreign ISP's box, having to fix someone's CGI script, and there is no /etc/httpd/logs/error_log, you can find which error log file is being used by Apache by searching through [path to apache root]/conf/httpd.conf
Apache isn't always located in /etc/httpd/. When I install Apache on a box, I always install it in /usr/local/apache/. The mileage varies. :)
In reply to (jeffa) Re: Easier Linux/Unix remote CGI Debugging