Python构造捕获交互式对话框输出

Question

I would like to use fabric to set the password for a user on a remote server.

Let's say I have a user named 'john' and I want to set a default password '123' for him.

Ideally I would like to do this:

run 'passwd john' on remote machine
detect when linux prompts for 'Enter new UNIX password:'
automatically enters the password
detect when linux prompts for 'Retype new UNIX password:'
automatically reenters the password

This is what I have tried:

result = run('passwd {}'.format(username))

The problem with this statement is that 'result' does not capture when linux prompts for entering password. It only returns after the passwords are entered.

Is there a way to automate interactive prompts like this?

Thanks!

Answer 1

您可以将fexpect用于交互式提示。

Answer 2

you can use prompts

password = '123'
with settings(prompts={
                  'Enter new UNIX password: ': password,
                  'Retype new UNIX password: ': password
              }):
    run('passwd {}'.format(username))