晋太元中，武陵人捕鱼为业。缘溪行，忘路之远近。忽逢桃花林，夹岸数百步，中无杂树，芳草鲜美，落英缤纷。渔人甚异之，复前行，欲穷其林。 　　林尽水源，便得一山，山有小口，仿佛若有光。便舍船，从口入。初极狭，才通人。复行数十步，豁然开朗。土地平旷，屋舍俨然，有良田、美池、桑竹之属。阡陌交通，鸡犬相闻。其中往来种作，男女衣着，悉如外人。黄发垂髫，并怡然自乐。 　　见渔人，乃大惊，问所从来。具答之。便要还家，设酒杀鸡作食。村中闻有此人，咸来问讯。自云先世避秦时乱，率妻子邑人来此绝境，不复出焉，遂与外人间隔。问今是何世，乃不知有汉，无论魏晋。此人一一为具言所闻，皆叹惋。余人各复延至其家，皆出酒食。停数日，辞去。此中人语云：“不足为外人道也。”(间隔 一作：隔绝) 　　既出，得其船，便扶向路，处处志之。及郡下，诣太守，说如此。太守即遣人随其往，寻向所志，遂迷，不复得路。 　　南阳刘子骥，高尚士也，闻之，欣然规往。未果，寻病终。后遂无问津者。 .
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Current File : //usr/share/doc/perl-Expect/examples/ssh.pl
#!/usr/bin/perl
#
#      A Simple Terminal Resizing Example
#      (C) 2006 Jeff Carr
#      This script can be used under the same terms as Perl.
#
# This script is a simple example of how handle terminal
# window resize events (transmitted via the WINCH signal)
# -- Jeff Carr <jcarr@linuxmachines.com>
#
# NOTE: I (the Expect maintainer) strongly object against using Expect
# to automate ssh login. There are better methods, see ssh-keygen.
# If you use this example as a stub to control a remote application,
# please remove the password-part and use public-key authentication
# instead.
# -- Roland Giersig <RGiersig@cpan.org>
#

if( ! defined $ARGV[0] ) {
	print "Usage: ssh.pl <host> [ <username> [ <password> ] ]\n";
	exit;
}

my ($host, $username, $password) = @ARGV;
$username = $ENV{USER} if $username eq "";

use Expect;
use IO::Pty;

my $spawn = new Expect;
$spawn->raw_pty(1);

# This gets the size of your terminal window
$spawn->slave->clone_winsize_from(\*STDIN);

my $PROMPT;

# This function traps WINCH signals and passes them on
sub winch {
	my $signame = shift;
	my $pid = $spawn->pid;
	$shucks++;
	print "count $shucks,pid $pid, SIG$signame\n";
	$spawn->slave->clone_winsize_from(\*STDIN);
	kill WINCH => $spawn->pid if $spawn->pid;
}
$SIG{WINCH} = \&winch;  # best strategy

$spawn=Expect->spawn("ssh $username\@$host");
# log everything if you want
# $spawn->log_file("/tmp/autossh.log.$$");

my $PROMPT  = '[\]\$\>\#]\s$';
my $ret = $spawn->expect(10,
	[ qr/\(yes\/no\)\?\s*$/ => sub { $spawn->send("yes\n"); exp_continue; } ],
	[ qr/assword:\s*$/ 	=> sub { $spawn->send("$password\n") if defined $password;  } ],
	[ qr/ogin:\s*$/		=> sub { $spawn->send("$username\n"); exp_continue; } ],
	[ qr/REMOTE HOST IDEN/ 	=> sub { print "FIX: .ssh/known_hosts\n"; exp_continue; } ],
	[ qr/$PROMPT/ 		=> sub { $spawn->send("echo Now try window resizing\n"); } ],
);

# Hand over control
$spawn->interact();
exit;

haha - 2025