This is an example of how Expect.pm and clogin can be used together:

#! /usr/bin/perl -w
use warnings;
use diagnostics;
use strict;
use Expect qw(expect);
use Carp;

scalar @ARGV or croak "usage: $0 host1...";

my $session = Expect->spawn( 'clogin', $ARGV[0] );
if ( exists $ENV{'exp_internal'} ) { $session->exp_internal(1) }
$session->log_stdout(1);

sub expect_send {
    my $pattern = shift;
    my $command = shift;
    my $ret     = $session->expect(
        30,
        [ '-re', $pattern => sub { $_[0]->send("$command\n") } ],
        @_,
        [ timeout => sub { croak 'Timeout' } ],
        [ eof     => sub { croak 'EOF (clogin exited unexpectedly)' } 
+],
    );
    croak 'Nothing matched, not even timeout, died'
      if not defined $ret;
    return $ret;
}

expect_send qr/#/, 'show clock';
expect_send qr/#/, 'show logging';
$session->expect(
    30,
    [
        '-re',
        qr/Log Buffer \(\d+ bytes\)/i => sub {
            $session->match() =~ /\((\d+) bytes\)/i;
            print "\n\n* Found logging buffer size is $1 bytes *\n\n";
            if ( $1 < 8192 ) {
                expect_send qr/#/,            'configure terminal';
                expect_send qr/\(config\)#/i, 'logging buffered 8192';
                expect_send qr/\(config\)#/i, 'end';
                expect_send qr/#/,            'write memory';
            }
          }
    ],
);
expect_send qr/#/, 'exit';
$session->soft_close;
[download]

---

---

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! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

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:
	&		&
	<		&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.