It looks like you want something like this: 

#!/usr/bin/perl
use warnings;
use strict;

while ( <> ) {
    if ( $. == 1 ) {
        open OUTPUT '>', "out$ARGV" or die "Cannot open out$ARGV: $!";
    }
    print OUTPUT;
    close ARGV if eof;
}

[download]

In reply to Re: Changing the output filehandle while iterating input files. by jwkrahn
in thread Changing the output filehandle while iterating input files. by reedx032

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