HI, I am new to perl.I have written a piece of code to automate login.I was able to login to my host,i am unable to switch to super user mode ..Also,i want to execute multiple commands on host & extract output of each executed commands.How to extract Output of each command i executed? Im sorry that im asking you to write the code.I will appreciate ur suggestion.. 
#!/bin/perl
 
use Expect;
 
 
$host = xxxxx;
$user = yyyyy;
$pw   = shift;
 
#--- CONFIGURATION ---------------------------------------------------
+--------#
$cmd    = "ssh -l $user $host";
$prompt = "[Pp]assword";
 
#--- START SSH LOGIN SEQUENCE ! --------------------------------------
+--------#
$exp = new Expect();
$exp->log_file("SSHLOGFILE.txt");
$exp->raw_pty(1);  
$exp->spawn($cmd);
 

$exp->expect(10,
               [ qr/\(yes\/no\)\?\s*$/ => sub { $spawn->send("yes\n");
+ exp_continue; } ],   
               [ $prompt => sub { $_[0]->send("pwd\n"); } ]);




Here im unable to switch to super user login 
$exp->send("su - root\n");
$exp->expect(10,
               [ $prompt => sub { $_[0]->send("pwd\n"); } ]);

$exp->close();

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In reply to ssh using expect by bala_999

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