#!/usr/bin/perl -w
use strict;
use Expect;
$| = 1;         

my $exp = new Expect;
$exp->raw_pty(1);    # treat this terminal as a raw file
$exp->log_stdout(0); # do not show terminal output to STDOUT
$exp->log_file("/dev/null"); # log all output to /dev/null  

$exp->spawn("/bin/sh");

$exp->expect(2,
             ['such file or directory',
                sub { print "ERROR: no shell\n"; die;   }  ],
             [timeout =>
              sub {
                $exp->send("/usr/bin/last -5 $username\n");
                
                $exp->log_file(undef);    # should clear the log file location
                $exp->clear_accum();      # should tell it to clear its buffer
                $exp->log_file(\&formatoutput); # log to function formatoutput
                
                $exp->send("/bin/cat /etc/passwd\n");
              }
             ],
            ); 
$exp->soft_close();

sub formatoutput {
  my $input = shift;
  chomp($input);
  $input =~ tr/\r//;
  
  print"$input \n";
 }