I'm using a CGI script that prints a lot of data to STDOUT for a web browser, and at the same time prints it to a local file. The code looks like this: 
open(STDOUT, "| tee $filename");
# print normally, with output going to the browser and to the file $fi
+lename
close(STDOUT);

[download]
FYI, tee is a program that simply replicates standard output.

My problem is, I want to print only part out the output to a file - that is, print stuff to the browser, print more stuff to both the browser and the file, then just print to the browser again. So, what I want is to pipe things to tee, then turn it off - "unpipe" it.

Suggestions for doing this a completely different way are also very welcome, but I am not sure what modules are installed on this system so it might be better to avoid using any.

In reply to Multiple outputs in a CGI script by Cirollo

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