From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of ukhas
jean
Sent: 20 February 2007 08:05
To: Active Perl
Subject: regarding Net::Telnet
> Hi all ... had a problem executing this script which tries to run a
"who" command on a unix host id01.
>
'use strict; use warnings;' missing. Always include them at the start of
scripts. Had you included them, you would have seen a warning about a
potential problem with your code.
> use Net::Telnet;
>
> my $host = "id01";
> my $port = "1800";
Are you sure about that? Just checking, as that isn't the normal telnet
port.
> my $t = new Net::Telnet (Timeout => 10);
> $t->open(Host => $host, Port => $port);
> $t->login("abc", "123");
> my @lines = $t->cmd("^C");
> my @lines = $t->cmd("who");
> print "@lines";
>
> Its giving me this error:-
> unknown remote host: idl01 at test.pl line 5
>
> Any idea why this may be happening?? the host id01 can be reached if I
do a manual "telnet id01" from start->
> run.
Hard to say. I notice from the source code that it uses inet_atoi to
look up the ip address of the host. Try using the ip address explicitly
instead of the host name. Also try adding the host to your hosts file
(its location is platform dependant).
> when i do a manual "telnet id01", there is a script that runs from
.profile file ... its by default ... i dont > want to run that script
... hence the use of Ctrl-C or ^C.
Well, that is unlikely to do what you want. First, the login function
waits for a prompt before returning, so your attempt to send Ctrl-C is
too late. Second your attempt to send Ctrl-C actually sends "^" followed
by "C" followed by "\n", which isn't the same thing. Possibly something
like '$p->put("\003"); $p->cmd();' might work.
>
> Any suggestions are most welcome.
It's always a good idea to read the documentation of the modules and
functions that you use, especially if you are having problems with them.
I have never used the module, the above comments are the result of a
brief glance at the documentation.
HTH
--
Brian Raven
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