Your description is a little confusing. I need some clarification:

1. You have a set of commands you need to run on a production machine as user 'superuser' (ie, userid 0)
2. You can do this interactively by
   • logging onto the production machine as yourself
   • executing 'sudo su superuser'
   • executing the commands
3. You have attempted to write a perl script to connect to the production machine and do this, but cannot figure out the logic

it would be helpful if you provided a sample of what you've tried in Net::SSH::Expect. I have made a lot of assumptions here, but if they are correct, it boils down to attempting to execute the commands as 'superuser'. The easiest way I can think of to do this would be something like:

#! /usr/bin/perl
use strict;
use warnings;
use Fcntl qw( :mode );

# other code here...
my $file = "/tmp/su.cmds";
open (CMDS, ">$file");
print CMDS "#! /bin/bash\n";
print CMDS "command 1\n";
print CMDS "command 2\n";
close CMDS;
chmod S_IRWXU | S_IXGRP | S_IXOTH, $file;
system ("sudo superuser $file");
# script continues
[download]

This script obviously assumes you can run a perl script on the target system. You could just as easily do these using 'shell commands' via Expect (ie create a command file and use 'sudo superuser cmdfile' to run it).

fnord