use strict;
use Term::ANSIScreen qw(:cursor :screen);
$| = 1;

cls;

locate(10, 10);
print "Hello"; 
sleep(1); 

locate(10,10);
clline();
print "Bye"; 
sleep(1);
[download]

Update: Turned off buffering (which was causing some problems) and added example for clline.

stephen

Wouldn't you be better off setting $| = 1 then printing without the newlines?

    -- Chip Salzenberg, Free-Floating Agent of Chaos

Update: See also these nodes: Curses Help and How can I use curses with Perl?

--ZZamboni

There are also more full-featured curses functions in Curses::Forms and Curses::Widgets.

Here is a snippet that uses Curses to do something like what you want. The hard part is figuring out how to keep the screen refreshed while your code is off doing something more interesting.

use strict;
use Curses;
 
my $mwh = new Curses;
$mwh->addstr(8, $LINES-2, 'Initialized...');
$mwh->refresh;
sleep 2;
 
for (qw(Show_me_first I'm_second Third_then_quit))
{
  $mwh->addstr(8, $LINES-2, sprintf("%15s",$_));
  $mwh->refresh();
  sleep 2;
}

END
{
  endwin(); # Make Curses clean up after itself
}
[download]

The Perl Curses module documentation assumes that you already understand the curses library. For simple tasks, it's not too bad to figure out. As your requirements become more complex, it is easy to get bogged down in the details of curses. Another approach would be to use a GUI status window such as one provided by Tk (warning: Tk link returns lots of stuff).

It should work perfectly the first time! - toma