Whenever you want a refresh on a time period in Tk, you probably want a timer. 
$mw->repeat(1000, \&status_bank);

sub status_bank{
   ......... do your extraction from file

   $mw->update;
   
}

[download]
If you have alot of banks and entries, put them all in a hash, and loop thru them, like this pseudocode: 
my %box_banamex;

$box_banamex{$bank}{'entry'} = $upperframe->Entry(.........
                -textvariable => \$box_banamex{$bank}{'status'},
 

foreach my $bank (keys %box_banamex){
      #read each value from file
     $box_banamex{$bank}{'status'} = whatever from file parsing;
    $box_banamex{$bank}{'entry'}->update;
}

[download]
I'm not really a human, but I play one on earth. Cogito ergo sum a bum

In reply to Re: Refresh data ina entry widget by zentara
in thread Refresh data ina entry widget by padawan_linuxero

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