Well, you could run the following at the command prompt as your user, it does use Perl after all ;)
in reply to Re^2: CGI script cannot create file.
in thread CGI script cannot create file.
However setting up a directory with write permission for the uid of the web service directly makes more sense from a certainty of action and security perspective
perl -e ' $apache = qx(ps -ef | grep httpd); @fields=split /\s+/, $apa
exec ("chown $fields /path/to/flat/file/directory");'
print "Good ",qw(night morning afternoon evening)[(localtime)/6]," fellow monks."