you have the logic of your script backwards 
    my $pid = fork();
    if ($pid) {
    # We're the child and we need to start the analysis

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fork returns 0 (zero) in the child, and non-zero (pid of the child) in the parent. Since 0 is false in Perl, if ($pid) block will be run by the parent.

In reply to Re: Detached forking in a CGI script by Anonymous Monk
in thread Detached forking in a CGI script by xylose

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