hi, The output from my Perl-Expect-SSH program is all jumbled and prints characters in random manner.. Is there any terminal/stty settings I need to set ? Thanks so much for help..

Why does my program print output like this..
-----------
$ ./new.pl
LOGIN : PASS
COMMAND= grep -i 00:25:B5:11:11:12 /var/log/messages | grep DHCPACK | 
+awk {'print $8'} |uniq
OUTPUT = 50.6.0.135
IP = 50.6.0.135
 | awk '{print $2}' 50.6.0.135
  1   (50.6.0.11)  2999.637 ms !H  2999.639 ms !H  2999.635 ms !Hs max
+, 40 byte packets
Trace route : FAIL

-----------
Whereas, I was expecting output like this..

$ ./new.pl
LOGIN : PASS
COMMAND= grep -i 00:25:B5:11:11:12 /var/log/messages | grep DHCPACK | 
+awk {'print $8'} |uniq
OUTPUT = 50.6.0.135
IP = 50.6.0.135
TRACEROUTE OUTPUT =   1   (50.6.0.11)  2999.637 ms !H  2999.639 ms !H 
+ 2999.635 ms !Hs max, 40 byte packets
Trace route : PASS
------------

Here is my code..
----------------------------------------

#!/usr/bin/perl
use strict;
use Expect;

# globals
my $hostname ='50.10.0.11';
my $username ='root';
my $password ="mypassword";
my $timeout = 15;
my $prompt = '.*@.*\s+.*';

my $mac = "00:25:B5:11:11:12";
find_dhcpip($mac);

sub find_dhcpip {
  my $mac = shift;
  my ($exp,$dhcpip);;
  my ($cmd,@output);

  # login
  return 0 if(! ($exp = login22($hostname,$username,$password)));

  # run commands
  $cmd = "grep -i $mac /var/log/messages | grep DHCPACK | awk {'print 
+\$8'} |uniq";
  @output = executeCmd($exp,$cmd);
  print("COMMAND= $cmd\n");
  print("OUTPUT = @output\n");
  $dhcpip = $output[0];
  print("IP = $dhcpip\n");

  # check output of 'traceroute'
  my @tr_output;
  $cmd = "traceroute $dhcpip | awk '{print \$2}'";
  print("COMMAND= $cmd\n");
  @tr_output = executeCmd($exp,$cmd);
  print "TRACEROUTE OUTPUT = @tr_output\n";
  if(grep(/$dhcpip/,@tr_output)) {
    print "Trace route Success.. DHCP-IP = $dhcpip\n";
  } else {
    print "Trace route : FAIL\n";
  }

  # logout
  return 0 if(! logout22($exp));
}

sub login22 {
  my ($hostname,$username,$password) = @_;
  my ($cmd,$output);
  my $exp;

  # get an Expect object
  $exp = new Expect;
  $exp->slave->clone_winsize_from(\*STDIN);  # Set the terminal size
  $exp->raw_pty(1);   # dont change this - it must be 1, otherwise you
+'ll see cmd echo in output
  $exp->log_stdout(0);
  $exp->debug(0);

  # spawn ssh command and wait for password
  $cmd = "ssh $username@"."$hostname";
  $exp->spawn($cmd) or die "Cannot spawn ssh: $!";
  $exp->expect($timeout, '-re' ,"[Pp]assword: ") or die "Could not log
+in into the system";
  $output = $exp->before(); chomp($output);

  # enter password and wait for a prompt
  $cmd = "$password\n";
  $exp->send($cmd);
  $exp->expect($timeout, '-re' ,$prompt) or die "prompt not found";
  $output = $exp->before(); chomp($output);

  print "LOGIN : PASS\n";
  return $exp;
}

sub executeCmd {
  my ($exp,$cmd) = @_;
  my ($output,@output);

  $exp->clear_accum();
  sleep 1;
  $exp->send("$cmd\n");
  $exp->expect($timeout, '-re' ,$prompt) or die "prompt not found";
  $output = $exp->before(); chomp($output);

  @output = split("\n",$output);
  # Remove command echo from output, normally in the 1st line
  if($cmd =~ $output[0]) {
    #delete $output[0]
    my $last = $#output;
    @output = @output[1..$last];
  }

  return @output;
}

sub logout22 {
  my $exp = shift;
  $exp->send("logout\n");
  $exp->hard_close();
}
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