How to comfirm automatically when execute a command with python script in centos?

Question

For example,
there is a command below,it has a confirmation step:

[root@vagrant-prod ~]# php artisan key:generate
**************************************
*     Application In Production!     *
**************************************

 Do you really wish to run this command? (yes/no) [no]:
 > yes

Now I want to execute above command via a python script:
auto.py

#!/usr/bin/python3
import os


def regenerate_key():
    os.system('cd /var/www/laravel_blog && php artisan key:generate')

if __name__ == "__main__":
    regenerate_key()

Executing above auto.py：

[root@vagrant-prod ~]# python3 auto.py

It also need to input yes manually,I want to comfirm it with above python script,how to do it?

update:

[root@vagrant-prod laravel_blog]# yes yes | php artisan key:generate
**************************************
*     Application In Production!     *
**************************************

Command Cancelled!

One yes or two yess have the same result.

Possible duplicate of [How do I script a "yes" response for installing programs?](https://stackoverflow.com/questions/7642674/how-do-i-script-a-yes-response-for-installing-programs) — Maraboc, Oct 06 '17 at 15:52
You want that just for the generate command or other commands ?? — Maraboc, Oct 06 '17 at 16:54
@Maraboc system comand like `yes | yum install wget`,it's ok. above `php artisan key:generate` is php command,the confirmation is defined by php.Here I want that just for this php command. — zwl1619, Oct 06 '17 at 17:03
ok try it like this `php artisan key:generate --force` it will skip confirmation step ;) — Maraboc, Oct 06 '17 at 17:04

score 1 · Answer 1 · answered Oct 06 '17 at 16:13

1

You can use the yes command like so:

#!/usr/bin/python3
import os


def regenerate_key():
    os.system('cd /var/www/laravel_blog && yes yes | php artisan key:generate')

if __name__ == "__main__":
    regenerate_key()

The command yes yes just echos "yes" to the terminal for the duration of the other command. You can confirm this behavior by just typing yes yes into a terminal. Remember that Ctrl+C stops command execution. So it will enter yes to the prompt and you're gold!

answered Oct 06 '17 at 16:13

Steampunkery

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why two `yes`s? – zwl1619 Oct 06 '17 at 16:17
1

Because the yes command alone echos "y" to the terminal. Passing an argument to yes causes it to echo the argument instead. – Steampunkery Oct 06 '17 at 16:18
Wait so yes cancels it? Weird. – Steampunkery Oct 06 '17 at 16:52
system comand like `yes | yum install wget`,it's ok. above `php artisan key:generate` is php command,the confirmation is defined by php. – zwl1619 Oct 06 '17 at 17:01

How to comfirm automatically when execute a command with python script in centos?

1 Answers1