ssh expect腳本

Question

我有這個期望腳本被另一個腳本調用來記錄cisco設備。某些原因變得慢到登錄到思科設備。有沒有人可以看到任何問題或建議可能會提高此腳本的速度。在此先感謝

#!/usr/bin/expect 

log_user 0 
set timeout 10 
set userid "id" 
set password "pass" 

# ############## Get two arguments - (1) Device (2) Command to be executed 
set device [lindex $argv 0] 
set command [lindex $argv 1] 

spawn /usr/bin/ssh -l $userid $device 

match_max [expr 32 * 1024] 

expect { 
    -re "RSA key fingerprint" {send "yes\r"} 
    timeout {puts "Host is known"} 
} 

expect { 
    -re "username: " {send "$userid\r"} 
    -re "(P|p)assword: " {send "$password\r"} 
    -re "Warning:" {send "$password\r"} 
    -re "Connection refused" {puts "Host error -> $expect_out(buffer)";exit} 
    -re "Connection closed" {puts "Host error -> $expect_out(buffer)";exit} 
    -re "no address.*" {puts "Host error -> $expect_out(buffer)";exit} 
    timeout {puts "Timeout error. Is device down or unreachable?? ssh_expect";exit} 
} 

expect { 
    -re "\[#>]$" {send "term len 0\r"} 
    timeout {puts "Error reading prompt -> $expect_out(buffer)";exit} 
} 

expect { 
    -re "\[#>]$" {send "$command\r"} 
    timeout {puts "Error reading prompt -> $expect_out(buffer)";exit} 
} 

expect -re "\[#>]$" 

set output $expect_out(buffer) 
send "exit\r" 
puts "$output\r\n" 

Answer 1

這可能是更好的問ServerFault上。無論如何，我首先要確保託管ssh守護進程的服務器或設備的熵不低，並且我會使用Wireshark或類似的方法來分析流量，以查看連接的哪一方似乎正在等待另一方。

Answer 2

將exp_internal 1添加到您的期望腳本中。您將能夠看到期望如何與模式匹配。我懷疑你的腳本恰好暫停了$ timeout秒，因爲你的一個模式未能匹配。