# use it
print $fhs[$i] "$line[0]\t$line[$i]\n";

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That is a syntax error. Better style is: 
print {$fhs[$i]} "$line[0]\t$line[$i]\n";

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See Perl Best Practices, Chapter 10, "Printing to Filehandles".

Update: Or, if you prefer OO-style IO: 

use IO::Handle;
# ...
$fhs[$i]->print("$line[0]\t$line[$i]\n");

[download]

In reply to Re^2: Multiple simultaneous filehandles by eyepopslikeamosquito
in thread Multiple simultaneous filehandles by ezekiel

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