I have written a small expect script which should spawn a telnet session login and execute some commands.
Now I have got the following problem..................
If the telnet service is not running on the server, I would like to see the script to fail, but the script still carrys on to execute the commands, even it is not logged in?????
How can I stop this please?
---------- Post updated at 09:43 AM ---------- Previous update was at 05:55 AM ----------
Just in case someone else has the same problem.
I could sort it with
Last edited by DukeNuke2; 08-05-2009 at 11:46 AM..
Reason: added code tags
Somewhat long story:
I have a simple Perl CGI script that uses Expect to Telnet to a device and grab some data, and then spits it back to Perl for display on the Webpage.
This works for many devices I've tried, but one device just fails, it keeps rejecting the password on this device, only... (1 Reply)
I am using Expect to spawn a command that loops through a text file and runs the same command for each item in the text file.
The text file, named stat.txt looks something like this:
2007-04 alist 543
2008-07 blist 543
2008-03 xlist 345
2008-03 ylist 675
2003-03 zlist 567
The expect... (1 Reply)
So here is what I am trying to do. I have a large # of switches and routers I am trying to log into. Unfortunately some have ssh only, some have telnet only. and some i have never logged into with ssh. I first want it to SSH, if i have never logged into the box it will ask for adding the ssh key. I... (0 Replies)
I must automatically monitor and manage a large number of boxes on our network.
I have been using perl/Net::Telnet and expect/telnet and also perl/ssh and expect/ssh to reach the command line of the remote boxes. Scripts are working but slow.
(Yes, I do use SNMP also but many boxes do not... (2 Replies)
Hi All,
I am trying to write a expect script to telnet and run a command on a remote host.The command i want to send contains a text value is contained in file.txt in the linux box from where i am running the expect script.I want to pass the contains of file.txt into a variable and call the... (1 Reply)
Hi all,
I am currently running a daemon which creates a virtual terminal for testing purposes. Essentially, if I were to interact with it manually, this is what I get.
john@test1:~$telnet localhost 7777
Trying ::1...
Connected to localhost.
Escape character is '^]'
mip6d> pl
eth2... (6 Replies)
I've got some expect/tcl scripts.
Now i want to add a function that allows to open a telnet connection and redirect the output to a logfile.
On the shell/terminal i tried something like:
'telnet 192.168.123.123 12121 > /home/user/logging/log-telnet.log'
and the telnet is redirected into the... (2 Replies)
Dear experts, please help me .
I've found simple EXPECT scripts and all works fine. But I need more automation in error handling and sending list of commands/output logging from multiple remote hosts.
I have 10 hosts, for example:
host1 192.168.1.1 LOGIN1 PASSWORD1
...... ... (2 Replies)
Hi All,
I have an Expect script which logs into Cisco switch, performs a show interface command. I want to read a file of ip addresses which will be passed to the expect script.
The script to read the file works, the expect script works on it's own but when i call the 'expect' script from the... (12 Replies)
hi, please help, keep getting this bolded error and look it up and people say
its your environment variable though i tried to set it manually in expect..it run fine if i run it manually but once i run it by cronjob it error below..i tried to comment out ip/login info with *..
logfile::
START... (0 Replies)
Discussion started by: cssanangeles
0 Replies
LEARN ABOUT CENTOS
telnet-probe
TELNET-PROBE(1) General Commands Manual TELNET-PROBE(1)NAME
telnet-probe - lightweight telnet-like port probe
SYNOPSIS
$PCP_BINADM_DIR/telnet-probe [-c] [-v] host port
DESCRIPTION
telnet-probe allows the pmdashping(1) daemons to establish connections to arbitrary local and remote service-providing daemons so that
response time and service availability information can be obtained.
The required host and port number arguments have the same meaning as their telnet(1) equivalents.
The -c option causes telnet-probe to perform a connect(2) only. This skips the read(2) and write(2) exercise that would otherwise be done
after connecting (see below).
The -v option causes telnet-probe to be verbose while operating.
Once the telnet connection has been established, telnet-probe reads from stdin until end-of-file, and writes all the input data to the tel-
net connection. Next, telnet-probe will read from the telnet connection until end-of-file, discarding whatever data it receives. Then
telnet-probe exits.
To operate successfully, the input passed via telnet-probe to the remote service must be sufficient to cause the remote service to close
the connection when the last line of input has been processed, e.g. ending with ``quit'' when probing SMTP on port 25.
By default telnet-probe will not produce any output, unless there is an error in which case a diagnostic message can be displayed (in ver-
bose mode only) and the exit status will be non-zero indicating a failure.
PCP ENVIRONMENT
Environment variables with the prefix PCP_ are used to parameterize the file and directory names used by PCP. On each installation, the
file /etc/pcp.conf contains the local values for these variables. The $PCP_CONF variable may be used to specify an alternative configura-
tion file, as described in pcp.conf(5).
DIAGNOSTICS
If telnet-probe succeeds, then 0 will be returned. If the attempt to establish a connection fails or is terminated, then a non-zero exit
status is returned.
SEE ALSO PCPintro(1), pmdashping(1), pmie(1), telnet(1), connect(2), read(2) and write(2).
Performance Co-Pilot PCP TELNET-PROBE(1)