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

my $mw=tkinit;
my $textarea = $mw->Scrolled("Text",-scrollbars => 'ose')->pack;
$mw->after(1000,\&filltext);
MainLoop;

sub filltext
{
  for (1..100){
    $textarea->insert('end', "$_\n");
    $textarea->see('end');
    $textarea->idletasks;
    $mw->after(50);  #this is just to slow things down
  }
}