blackstealth has asked for the wisdom of the Perl Monks concerning the following question:

Ok this may sound like a stuipd question to you guys, but I am a newbie. I am using net::telnet module to get running configurations off of some of our devices. One of the devices kicks a --More-- prompt. I have the script to auto page this. However it is returning to the show run, I can not figure out why. It may be that I have been looking at it too long. Can you please help? Thank you gratefully!! 
   my ($bwlogin,$bwpass,$bwenable) = split (/,/,$pass{$type});
   $telnet->print($bwlogin);
   $telnet->waitfor('/Password: $/i');
   $telnet->print($bwpass);
   my ($pre,$match) = $telnet->waitfor(Match => '/>$/i',
                                       Match => '/Login incorrect/');
   $match =~ />/ or return warn "Logon failed for $host \n";  
   $telnet->print("enable");
   $telnet->waitfor('/Password:$/i');
   $telnet->print($bwenable);
   ($pre,$match) = $telnet->waitfor(Match => '/#$/i',
                                    Match => '/\% authentication faile
+d/');
   $match =~ /#/ or return warn "Enable failed for $host \n";  
   while ($telnet->print("show run")){
      ($pre,$match) = $telnet->waitfor(Match => '/\-\-More\-\-$/i',
                                       Match => '/#$/i');
      if ($match =~ /\-\-More\-\-/){
         $telnet->print(" ");
      }
      if ($match =~ /#/){
         $telnet->print("exit");
      }
   }
 }

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Replies are listed 'Best First'.
Re: Net::Telnet while loop not exiting (Newbie Please be Gentle)
by shenme (Priest) on Sep 20, 2003 at 06:53 UTC
    Any chance this is simply timing out?   Apparently the default timeout for some/most operations including waitfor() is set at new() time and defaults to 10 seconds. (You can change it with timeout()

    If we take the Net::Telnet internals as canon, 

      ## Wait for login prompt.
  $self->waitfor(-match => '/login[: ]*$/i',
                 -match => '/username[: ]*$/i')
      or do {
          return &$error("read eof waiting for login prompt")
            if $self->eof;
          return &$error("timed-out waiting for login prompt");
      };

    [download]
    then maybe you should also test for the eof and timeout conditions.

    Obligatory nit: I don't think you need to escape the '-' characters if they aren't inside a character class, e.g. /--[!?]--/ )

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[d/l]
Re: Net::Telnet while loop not exiting (Newbie Please be Gentle)
by blackstealth (Novice) on Sep 20, 2003 at 06:55 UTC
    Well I knew I had been looking at it a long time. I figured it out for myself. Thanks for all your help though. I had to remove the double if and take the exit out of the loop.
[reply]
      could you please share your script, I am working on a script like that, and I don't find the solution thanks
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