expect ssh自动登录时退出很慢，请问这是为什么，如何变快？

wxdlut

-----cat auto_ssh.sh
#!/usr/bin/expect

set timeout 10
set host_ip [lindex $argv 0]
set password [lindex $argv 1]

spawn ssh ${host_ip}
expect {
     "(yes/no)?"
         {
             send "yes\n"
             expect "*assword:" { send "$password\n"}
         }
     "*assword:"
         {
             send "$password\n"
         }
     }
expect "100%"
expect eof


154:~/wx/shell/terminal # ./auto_ssh.sh 10.137.22.110 110
spawn ssh 10.137.22.110
Password:
Last login: Thu Feb  2 11:09:35 2012 from 10.137.23.53
154:~ # exit      ——此处exit退出很慢，足足有3-5s，请问这是为什么？如何提高速度？谢谢！
You have new mail in /var/mail/root
154:~/wx/shell/terminal # exit
logout
There are stopped jobs.

waker

#!/usr/bin/expect  -d
自己观察一下吧

wxdlut

回复 2# waker


    154:~/wx/shell/terminal # ./auto_ssh.sh 10.137.22.110 110
expect version 5.44.1.11
argv[0] = /usr/bin/expect  argv[1] = -d  argv[2] = ./auto_ssh.sh  argv[3] = 10.137.22.110  argv[4] = 110  
set argc 2
set argv0 "./auto_ssh.sh"
set argv "10.137.22.110 110"
executing commands from command file ./auto_ssh.sh
spawn ssh 10.137.22.110 parent: waiting for sync byte
parent: telling child to go ahead
parent: now unsynchronized from child
spawn: returns {16183}

expect: does "" (spawn_id exp4) match glob pattern "(yes/no)?"? no
"*assword:"? no
Password:
expect: does "Password: " (spawn_id exp4) match glob pattern "(yes/no)?"? no
"*assword:"? yes
expect: set expect_out(0,string) "Password:"
expect: set expect_out(spawn_id) "exp4"
expect: set expect_out(buffer) "Password:"
send: sending "mdsp105\n" to { exp4 }
send: sending "exit" to { exp4 }

expect: does " " (spawn_id exp4) match glob pattern "100%"? no


expect: does " \r\n" (spawn_id exp4) match glob pattern "100%"? no
Last login: Thu Feb  2 14:44:33 2012 from 10.137.23.3

wxdlut

#!/usr/bin/expect  -d

加了这个 -d 参数之后，会报错啊

waker

回复 4# wxdlut


   那些是详细的信息，不是报错，仔细看看吧，你预期匹配的字串真的匹配到了么？
另外通常我们都 send "\r"而不是send "\n" ，注意键盘上那个是回车键不是换行键