[TriLUG] Re: expect problem

[David McDowell]

if you escape the [ ... wouldn't you need to escape the ] ?


On 9/20/05, Greg Brown <gwbrown1 at gmail.com> wrote:
> Ah! In case anyone else runs into this, it turns out the probelm was the
> following line:
>
> expect "*[y/n]:"
>
> I should have seen this the first time, but the problem is the "["
> character. This is a character that is used in if/then loops (i.e. if ![ 1 =
> 2 ] - and I'm not sure if that sytax is correct). Anyway, the fix was to put
> the standard escape character "\" before the "[" and the problem goes away.
> With that in mind the new line is:
>
> expect "*\[y/n]:"
>
> Volia. Problem solved.
>
> Greg
>
> On 9/20/05, Greg Brown <gwbrown1 at gmail.com> wrote:
> >
> > Hey peeps.. I seem to have a bug in my expect script. The script changes
> > passwords on HP blade servers via telnet. It appears that I am getting an
> > extra line back from the server that I was not, um, expecting and it causes
> > the script to exit. Here is the section of script I am concered with:
> >
> > # look for "accepted"
> > expect "*accepted."
> >
> > # now look for <hostname>-User Access Control#
> > expect "*Control#"
> >
> > # send an apply
> > send "apply\r"
> >
> > # look for the same prompt as before
> > expect "*Control#"
> >
> > # now tell it to save
> > send "save\r"
> >
> > # now look for the FLASH prompt
> > expect "*[y/n]:"
> >
> > # enter a "Y"
> > send "Y\r"
> >
> > the script fails after "apply" here is captured output (but redirecting
> > stdout, nothing was ever sent to stderr):
> >
> > - User Access Control# usrpw
> > Changing USER password; validation required:
> > Enter current administrator password:
> > Enter new user password:
> > Re-enter new user password:
> > New user password accepted.
> >
> > >> rtpndsfnth1a8 - User Access Control# apply
> > ------------------------------------------------------------------
> > Apply complete; don't forget to "save" updated configuration.
> >
> > >> xxxxxxxxxxx - User Access Control# spawn telnet xxx.xxx.xxx.252
> > Trying xxx.xxx.xxx..252...
> >
> >
> > See, that extra "Apply complete" line seem to be throwing me off. The next
> > line should be the "Control" prompt I am looking for and I thought that this
> > extra line would be processed as I thought it should but it is causing the
> > whole script to fail. The script itself is called via a shell script and it
> > is only invoked one IP at a time (via the parent shell script).
> >
> > Any ideas?
> >
> > Greg
> >
> >
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