EXCEPT timeout problem Post: 302391789

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Top Forums Shell Programming and Scripting EXCEPT timeout problem Post 302391789 by fedora on Tuesday 2nd of February 2010 01:58:05 PM

02-02-2010

Registered User

EXCEPT timeout problem

i am trying to write an except script to ssh into a list of devices and run some commands, and i came across this problem, not every device is alive, which breaks the script, my script looks like this

Code:

#!/usr/bin/expect                           
# set defaults                              
set device [lindex $argv 0]                 

set user "admin"
set password "test123"
set list [open $device r] 
set resultfile [open setlog.log w]
set timeout 10                    
trap exit SIGINT                  

log_file -a -noappend setlog_logfile.log

# ssh to each IP on the list

while {[gets $list line] != -1} {
set pid [spawn ssh -o "ConnectTimeout 3" admin@$line]  
expect "password:"               
send "$password\r"               
expect eof                       
expect "#"                       
send "shell\r"                   
****some commands here****
send "exit\r"                             
expect eof                                
puts $resultfile "$line, Worked!"         
log_user 1                                
wait                                      
}

following is the error message i got, apparently expect runs across a dead ip and it times out and *continue* to run the next command in the script, how can i fix this? thanks

Code:

$ ./testrun /tmp/testip
spawn ssh -o ConnectTimeout 3 admin@192.168.1.2
ssh: connect to host 192.168.1.2 port 22: Connection timed out
send: spawn id exp9 not open
    while executing
"send "$password\r"               "
    ("while" body line 4)
    invoked from within

Last edited by Scott; 02-02-2010 at 03:06 PM.. Reason: Please use code tags

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LEARN ABOUT MOJAVE

ssh-argv0

SSH-ARGV0(1)                                                BSD General Commands Manual                                               SSH-ARGV0(1)

NAME

     ssh-argv0 -- replaces the old ssh command-name as hostname handling

SYNOPSIS

     hostname | user@hostname [-l login_name] [command]

     hostname | user@hostname [-afgknqstvxACNTX1246] [-b bind_address] [-c cipher_spec] [-e escape_char] [-i identity_file] [-l login_name]
     [-m mac_spec] [-o option] [-p port] [-F configfile] [-L port:host:hostport] [-R port:host:hostport] [-D port] [command]

DESCRIPTION

     ssh-argv0 replaces the old ssh command-name as hostname handling.  If you link to this script with a hostname then executing the link is
     equivalent to having executed ssh with that hostname as an argument.  All other arguments are passed to ssh and will be processed normally.

OPTIONS

     See ssh(1).

FILES

     See ssh(1).

AUTHORS

     OpenSSH is a derivative of the original and free ssh 1.2.12 release by Tatu Ylonen.  Aaron Campbell, Bob Beck, Markus Friedl, Niels Provos,
     Theo de Raadt and Dug Song removed many bugs, re-added newer features and created OpenSSH.  Markus Friedl contributed the support for SSH
     protocol versions 1.5 and 2.0.  Jonathan Amery wrote this ssh-argv0 script and the associated documentation.

SEE ALSO

     ssh(1)

Debian Project                                                   September 7, 2001                                                  Debian Project