I don't see how your output can be produced, but maybe that's because I don't see the input. It seems to me that the output of ./retrieve does not get captured in @output. What is the printout of

#!perl -w
use strict;
use Data::Dumper;

my @output = `./retrieve 2301`;
print Dumper \@output;

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In reply to Re^6: Retrieving information from an executable program by Corion
in thread Retrieving information from an executable program by kitifu

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