Bash here文档与expect不起作用

我在expect文件中编写了一些代码：

  #!./expect -f

  set timeout -1
  spawn /path/to/command --foo param1 --bar param2 --password
  expect "Password for baz which is prompted on the console.: "
  send "pass\r"
  expect "> "
  send "print\r"
  expect "> "
  send -- "\r"

当我运行它时，输出是：

spawn /path/to/command --foo param1  --bar param2 --password
Password for baz which is prompted on the console.: 
> print

{"stuff"}

> 
> 

我在bash的here文档中有一些代码：

variable=$(/usr/bin/expect <<HEREKALpxT5KZu
  set timeout -1
  spawn /path/to/command --foo param1 --bar param2 --password
  expect "Password for baz which is prompted on the console.: "
  send "pass\r"
  expect "> "
  send "print\r"
  expect "> "
  send -- "\r"
HEREKALpxT5KZu
)

---

没有第二个“>”和{“东西”}。就像打印命令从未发送过一样。另外，当我在末尾添加“interact”时，它只适用于expect文件，而不适用于here文档。

使用

expect-d

启用调试。可能您的实际expect脚本正文需要保护，以防shell参数扩展：try

variable=$（expect
spawn /path/to/command --foo param1 --bar param2 --password
Password for baz which is prompted on the console.: 
>