Or you can set a repeat on the main window..... 

use Tk;
my $SLEEP = 1000;  # msec
my $mw = new MainWindow;
$mw->title('Clock');
my $text = $mw->Text( -width => 25, -height => 2 )->pack;
$mw->Button( 
    -text => " Start! ", 
    -command => sub { $mw->repeat($SLEEP,\&change_label) } )->pack;
MainLoop;

sub change_label { 
    $text->delete('1.0','end');
    $text->insert('end', (scalar localtime) );   
};

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In reply to Re^3: How ro read a file every 10 seconds? by Anonymous Monk
in thread How ro read a file every 10 seconds? by padawan_linuxero

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