After you open LOG but before you print anything, add this code: 
if (!(my $pid = open(STDOUT, "|-"))) {
    die "fork failed: $!" unless defined $pid;
    while (<STDIN>) {
        print $_;
        print LOG $_;
    }
    exit;
}

[download]
This will fork a child process that will capture everything sent to STDOUT. The print statements appear to the child as STDIN. What you do with it is up to your code.

In reply to Re: Print to the screen and a log at the same time? by ruzam
in thread Print to the screen and a log at the same time? by jcpunk

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