Something like this? 

#! perl -slw
use strict;
use threads;
use threads::shared;
use Net::Telnet;

my %data :shared;

sub thread {
    my( $machine, $user, $pass, $cmd ) = @_;
    $t = new Net::Telnet (
        Timeout => 10,
        Prompt => '>'
    );
    $t->open( $machine );
    $t->login( $user, $pass );
    my @lines :shared = $t->cmd( $cmd );
    $t->close;
    lock %data;
    $data{ $machine } = \@lines;
    return;
}

# AoA each sub array containing machineId, username, password and comm
+and to run
my @credentials = ...;

my @threads = map threads->create( \&thread, @$_ ), @credentials;

$_->join for @threads;

## Do something useful with the data gathered in %data.

[download]

In reply to Re: Working in parallel by BrowserUk
in thread Working in parallel by mpapec

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.