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Full Discussion: Strange expect problem
Top Forums UNIX for Dummies Questions & Answers Strange expect problem Post 302144144 by Ant1815 on Tuesday 6th of November 2007 11:43:08 AM
Old 11-06-2007
Strange expect problem
Hi

I'm writing a script which calls an expect script to retrieve configuration files for network devices. I want to avoid using TFTP to transfer the configs if possible and so I'm redirecting the screen output to a text file.

This is the expect script:

#!/usr/local/bin/expect

set HOSTNAME [lindex $argv 0]
set USERNAME [lindex $argv 1]
set PASSWORD [lindex $argv 2]

set timeout 10

spawn /usr/local/bin/ssh -1 $USERNAME@$HOSTNAME
expect "word:"
send "$PASSWORD\r"
expect "#"
send "terminal length 0\r"
expect "#"
sleep 1
log_file /{$LOGFILEPATH}/$HOSTNAME-running.txt
send "show running-config\r"
expect "#"
sleep 1
log_file
send "logout\r"

exit 0


It works really well for most devices, so I'm not too hung up on the exact syntax of the script, but I'm having real problems with a couple of devices. The only thing that these problem devices seem to have in common is that the configs are bigger than usual. What happens is that around 85% of the config gets output and then the script just halts and won't go any further.

I've played around with the timeouts and the sleep commands and it seems to make no difference at all.

I've run it in debug mode and can't see any problems other than the fact that it just stops 85% the way through the config output. There are no # characters or anything else in the configs that could trigger a premature send either.

I thought maybe the expect buffer wasn't big enough but all I've read on the internet suggests that the buffer shouldn't be a problem. I'm pretty stumped as to why it just halts. As I said it works fine on most other devices.

Any ideas anyone?

Thanks.
 

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LEARN ABOUT SUNOS

asadmin-list-resource-adapter-configs

asadmin-list-resource-adapter-configs(1AS)			   User Commands			asadmin-list-resource-adapter-configs(1AS)

NAME

       asadmin-list-resource-adapter-configs,  list-resource-adapter-configs  -  lists the configuration information created in domain.xml for the
       connector module

SYNOPSIS

       list-resource-adapter-configs --user admin_user [--password admin_password][--host localhost]  [--port  4848][--secure|-s]  [--passwordfile
       filename] [--terse=false] [--echo=false] [--interactive=true] [--verbose=false][--ranameconnector_module_name]

       Lists  the  configuration  information in the domain.xml for the connector module.  It lists an entry called resource-adapter-config in the
       domain.xml.

       This command is supported in remote mode only.

OPTIONS

       --user		       authorized domain application server administrative username.

       --password	       password to administer the domain application server.

       --host		       machine name where the domain application server is running.

       --port		       port number of the domain application server listening for administration requests.

       --secure 	       if true, uses SSL/TLS to communicate with the domain application server.

       --passwordfile	       file containing the domain application server password.

       --terse		       indicates that any output data must be very concise, typically avoiding human-friendly sentences and favoring well-
			       formatted data for consumption by a script. Default is false.

       --echo		       setting to true will echo the command line statement on the standard output. Default is false.

       --interactive	       if set to true (default), only the required password options are prompted.

       --verbose	       if set to true the properties that are configured are also listed. Default is false.

OPERANDS

       raname			the value kept in the resource-adapter-name in the domain.xml file.

       Example 1: Using list-resource-adapter-configs

       asadmin> list-resource-adapter-configs --username admin1
       --password adminadmin1
       Command list-resource-adapter-configs executed successfully

EXIT STATUS

       0		       command executed successfully

       1		       error in executing the command

       asadmin-create-resource-adapter-config(1AS), asadmin-delete-resource-adapter-config(1AS)

J2EE 1.4 SDK							    March 2004				asadmin-list-resource-adapter-configs(1AS)
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