#!/usr/local/bin/perl -T use Tk; print join(':',@INC),"\n"; my $command = shift; my $mw = MainWindow->new; my $b = $mw->Button(-text => 'Quit', -command => [destroy => $mw]); $b->pack; my $b = $mw->Button(-text => 'Do It', -command => sub { unlink $command } ); $b->pack; MainLoop;