this was only meant to be an example on how the Button options can be used. In real world I'd keep data seperated from widgets wherever possible. Also if your data is dynamic I would prefer a Listbox or something similar over dynamically created buttons. That's what most people are used to. But this might well be my very personal taste ;)

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

my $mw = tkinit;
my @buttons;
my @data = qw/foo
              bar
              baz
              this
              that
              whatever
              /;
for my $i(0..5){
    push @buttons,
        $mw->Button(-text => $data[$i],
                    -command => sub{
                        print "pressed $data[$i]\n";
                        print "pressed ",
                            $buttons[$i]->cget('-text'),
                                "\n";
                    })->pack;
}
MainLoop();
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