[SOLVED] Check if my root password is a Certain Text

I was actually looking for something like:

#!/usr/bin/expect -f

set timeout -1

spawn sudo touch test

expect "password"

send -- "MyPWD123\n"

expect "Sorry, try again."

spawn power off

expect eof

This code is probably not working, but just to give an idea:

I was actually looking for something like:

#!/usr/bin/expect -f

set timeout -1

spawn sudo touch test

expect "password"

send -- "MyPWD123\n"

expect "Sorry, try again."

spawn power off

expect eof

This code is probably not working. This is just to give an idea.

What problem are you trying to solve with that? If you want to have the machine shut down after a failed login attempt there are several ways to accomplish that.

Originally Posted by Turbocapitalist What problem are you trying to solve with that? If you want to have the machine shut down after a failed login attempt there are several ways to accomplish that.

Sometimes people reset the root password using the boot menu. Even if someone reset the password they are not supposed to know my previous password. I just want to not let the user do anything if they reset with a different password.

I know there is encryption. I just want to use this as just another layer.

Why not just set a grub password to stop people from changing the boot settings?
You can also set the recovery grub option ask for a root password, so they need to know it to change it.

they will boot from usb.... If they really want to modify root pw. So you [would] need to disable that too. Using an encrypted volume (=which cannot be accessed without the password) will solve it permanently. But probably you need to reinstall the system to achieve it.

By the way, there is no script which can protect you, if they can reset the password without booting the system.