how would I use this approach to add newlines after every record in the file (i.e. after every 320 characters)?
Take advantage of the $/ variable 
{
    open(my $data, '<', "data_file") or die("ack - $!");
    open(my $out,  '>', "out_file")  or die("ack - $!");

    local $/ = \320;
    while(<$data>) {
        chomp;
        print $out $_ . "\n";
    }
}

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HTH

_________
broquaint

In reply to Re: Re: Re: Insert at regular increments by broquaint
in thread Insert at regular increments by EyeOpener

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