Question

有几个相同的帖子，但我仍然无法使我的期望脚本正常工作。我的目的是自动化所有内容，但保留密码输入给用户。所以脚本有3个部分：

自动登录
为用户提供交互以输入密码
将控制权交还给Expect脚本以继续工作

所以我有将要生成的脚本，它有3个读取命令。第一个和最后一个应该由Expect填充，第二个我想进入我自己：

#!/bin/ksh
read user?User:
echo "Expect entered the username $user"
read pass?Password:
echo "User entered the password $pass"
read command?"Shell>"
echo "Expect entered the command $command"

我期待的剧本：

#!/usr/bin/expect
spawn ./some_script
expect User
send I-am-expect\r
expect Password
interact
expect Shell
send I-am-expect-again

不幸的是，在我输入密码之后，脚本不会继续并保持在交互模式中：

[root@localhost ~]# ./my-expect
spawn ./some_script
User:I-am-expect
Expect entered the username I-am-expect
Password:i am user
User entered the password i am user
Shell>

最后当我在＆＃34; Shell＆＃34;然后按[ENTER]退出并显示错误：

Expect entered the command
expect: spawn id exp4 not open
    while executing
"expect Shell"
    (file "./my-expect" line 7)
[root@localhost ~]#

我赞成对此问题的任何解释或解决方案。我正在使用期待版本5.45

Answer 1

您可以自己阅读（expect_user）用户密码，然后send将其写入spawn'ed程序。例如：

[STEP 101] # cat foo.exp
proc expect_prompt {} \
{
    global spawn_id
    expect -re {bash-[.0-9]+(#|\$)}
}

spawn ssh -t 127.0.0.1 bash --noprofile --norc
expect "password: "

stty -echo
expect_user -timeout 3600 -re "(.*)\[\r\n]"
stty echo
send "$expect_out(1,string)\r"

expect_prompt
send "exit\r"
expect eof
[STEP 102] # expect foo.exp
spawn ssh -t 127.0.0.1 bash --noprofile --norc
root@127.0.0.1's password:
bash-4.3# exit
exit
Connection to 127.0.0.1 closed.
[STEP 103] #

Answer 2

应为#!/bin/bash read -p "User: " user echo "Expect entered the username $user" read -p "Password: " pass echo "User entered the password $pass" while : do # Simply executing the user inputs in the shell read -p "Shell> " command $command done提供适当的退出标准条件。

以下脚本将在shell中执行用户命令

<强> exeCmds.sh

#!/usr/bin/expect 
spawn ./exeCmds.sh
expect User
send dinesh\r
expect Password
send welcome!2E\r
expect Shell>
puts "\nUser can interact now..."
puts -nonewline "Type 'proceed' for the script to take over\nShell> "
while 1 {
        interact "proceed" {puts "User interaction completed.";break}
}
puts "Script take over the control now.."

# Now, sending 'whoami' command from script to shell
send "whoami\r"
expect Shell>

# Your further code here...

<强> automateCmdsExec.exp

automateCmdsExec.exp

脚本interact将解决bash脚本的登录需求，当提示到达时，它会将控件移交给用户。

我们应该为proceed定义一个退出条件，我使用了interact这个词。（您可以根据需要改变它。）

proceed匹配单词send后。它会将控件返回到expect脚本。

出于演示目的，我又保留了一对expect - send "whoami\r" expect Shell>命令。

即。

interact

您可以将更多代码保留在.zip下方，因此可以通过脚本执行。

期待，互动，然后再期待

2 个答案: