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Full Discussion: Bash : While Loop behavior
Top Forums UNIX for Advanced & Expert Users Bash : While Loop behavior Post 302935035 by Corona688 on Thursday 12th of February 2015 12:22:44 PM
Old 02-12-2015
In what way does it not work?


Code:
$ ./oneopt.sh
 M A I N - M E N U
1. Contents of /etc/passwd
2. List of users currently logged
3. Prsent handling directory
4. Exit
Please enter option [1-4] :
1
1

 M A I N - M E N U
1. Contents of /etc/passwd
2. List of users currently logged
3. Prsent handling directory
4. Exit
Please enter option [1-4] :
2
2

 M A I N - M E N U
1. Contents of /etc/passwd
2. List of users currently logged
3. Prsent handling directory
4. Exit
Please enter option [1-4] :
3
3

 M A I N - M E N U
1. Contents of /etc/passwd
2. List of users currently logged
3. Prsent handling directory
4. Exit
Please enter option [1-4] :
4
4

$

I see nothing wrong.
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POE::Loop::Tk(3pm)					User Contributed Perl Documentation					POE::Loop::Tk(3pm)

sub skip_tests {
  return "Tk needs a DISPLAY (set one today, okay?)" unless (
    (defined $ENV{DISPLAY} and length $ENV{DISPLAY}) or $^O eq "MSWin32"
  );
  my $test_name = shift;
  if ($test_name eq "k_signals_rerun" and $^O eq "MSWin32") {
    return "This test crashes Perl when run with Tk on $^O";
  }
  return "Tk tests require the Tk module" if do { eval "use Tk"; $@ };
  my $m = eval { Tk::MainWindow->new() };
  if ($@) {
    my $why = $@;
    $why =~ s/ at .*//;
    return "Tk couldn't be initialized: $why";
  }
  return; }

NAME
POE::Loop::Tk - a bridge that allows POE to be driven by Tk SYNOPSIS
See POE::Loop. DESCRIPTION
POE::Loop::Tk implements the interface documented in POE::Loop. Therefore it has no documentation of its own. Please see POE::Loop for more details. POE::Loop::Tk is one of two versions of the Tk event loop bridge. The other, POE::Loop::TkActiveState accommodates behavior differences in ActiveState's build of Tk. Both versions share common code in POE::Loop::TkCommon. POE::Loop::Tk dynamically selects the appropriate bridge code based on the runtime environment. SEE ALSO
POE, POE::Loop, Tk, POE::Loop::TkCommon, POE::Loop::PerlSignals. AUTHORS &; LICENSING Please see POE for more information about authors, contributors, and POE's licensing. perl v5.10.1 2010-04-11 POE::Loop::Tk(3pm)
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