Net :: SSH :: Expect输出read_line（）终止符

Question

我正在使用 Net::SSH::Expect

$ssh->exec("no paging");
$ssh->send("sh startup-config");
$ssh->peek(0);

my $line;

while( defined ($line = $ssh->read_line()) ) {

    # get configuration content
    if ( $line !~ /show running-config|Building Configuration...|Current configuration|^\s*$/ ) {
        push @config, $line;
    }
}

if ( @config <= 0 ) {
    $msg = "No data retrieved, the capture timeout may be too low.";
    $ssh->close();
    return(244, $msg);
}

问题是命令sh startup-config的输出以这种方式显示数据：

data\n
data\n
data\n
data\n
\n
moredata\n
moredata\n
moredata\n ....

使用\n\n，我得到的输出仅包含信息的第一段。