RE: [Expectperl-discuss] unexpected \r and other chars.

[<Tin...@Te...>]

Oops, I think it makes to me now.  

The ^ in the bracket means negate right? OK, thanks. 

Ting

> -----Original Message-----
> From: Ting Cai
> Sent: Wednesday, April 17, 2002 1:20 PM
> To: 'Ed Ravin'
> Cc: exp...@li...
> Subject: RE: [Expectperl-discuss] unexpected \r and other chars.
> 
> Hi, Ed,
> 
> Thanks for your help. I am actually interacting with a Riverstone router.
> 
> A similar command on Riverstone is cli set terminal rows 0, but I am still
> seeing some control characters.
> 
> Can you explain a little about "# ", try "^[^#]+# "?
> 
> ^ means the beginning of the line, + means one or more of the previous
> character, [] means any one of the characters in the [], right?
> 
> I don't see how it can used to match new prompt?
> 
> Thanks again.
> 
> Ting
> 
> 
> 
> 
> 
> > -----Original Message-----
> > From: Ed Ravin [mailto:er...@pa...]
> > Sent: Wednesday, April 17, 2002 9:22 AM
> > To: Ting Cai
> > Cc: exp...@li...
> > Subject: Re: [Expectperl-discuss] unexpected \r and other chars.
> >
> > Tin...@Te... writes:
> > > I am seeing a bunch of extra characters inserted between the command I
> > sent.
> > > I sent 'copy startup to bootflash:lab-baseline.conf\n', but the string
> > used
> > > in matching is:
> > >
> > > ----
> > > Does `copy \033[?25l\rlab1nnisaa02.lab# copy
> > >
> >
> \015\033[C\033[C\033[C\033[C\033[C\033[C\033[C\033[C\033[C\033[C\033[C\033
> > [C
> > > \033[C'
> >
> > Looks like you're talking to a Cisco router, and the router is sending
> > terminal escape codes as part of its echoback.  I see "<esc> [ ? 25 l"
> > (some kind of reset mode command) and lots of "<esc> [ C" (cursor
> right).
> > The Cisco is probably trying to do command line editing or otherwise
> > reformatting the echo of your input to make things look nice.
> >
> > You need to send "terminal width 0" and "terminal length 0" to the
> router
> > before starting to interact with it.  That will keep the Cisco from
> > sending
> > screen formatting codes to the terminal, or from pausing during the
> > output of multi-line commands.
> >
> > Feel free to steal code from aclmaker, a tool I wrote that interacts
> > with Cisco routers to manage access control lists - it's over at:
> >
> >    http://prdownloads.sourceforge.net/cosi-nms/aclmaker-perl-1.02.txt
> >
> > See the subroutines "open_router" and "get_prompt" in that program for
> > how I dealt with some of these issues.
> >
> > You probably also want to make your match strings more precise -
> > instead of "# ", try "^[^#]+# " to match a new router prompt,
> > and " \[no\]" to match the confirmation question.  Or you can steal
> > aclmaker's logic, which discovers the router's prompt dynamically
> > and tries to match that during subsequent commands.
> >
> > 	-- Ed