This assumes you have installed the Net::OpenSSH module on your system.

Here is a really simple example to get started with Net::OpenSSH.

#!/usr/bin/perl

use strict;
use warnings;
use Net::OpenSSH;

my $host  = "your_hostname";
my $ssh   = Net::OpenSSH->new($host);
$ssh->system("ls /tmp");

Or, you could store the results in a variable and then print the variable.

my ($out) = $ssh->capture2("ls /tmp");
chomp $out;
print "$out\n";

Username / Password

With the above usage, you will be prompted for the users password when connecting to the target SSH server. To include the password in the Perl script, installed the IO::Pty module and then use the following.

my $user  = "your_username";
my $pass  = "your_password";
my $host  = "your_hostname";
my $ssh   = Net::OpenSSH->new("$user:$pass\@$host");