You're opening the file twice, the second time using some arcane method. 
#!/usr/bin/perl

use 5.010;

use strict;
use warnings;

my $fn_log = 'perlogfile.rtf';

open(my $fh_log, '>>', $fn_log)
    or die("Can't append to log file \"$fn_log\": $!\n");

print($fh_log $_) while <STDIN>;

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In reply to Re: Can't get a simple log creator to work! by ikegami
in thread Can't get a simple log creator to work! by aquinom85

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