1

As we know that, password must be inputted while switching user [Username: test, Password: test]

[user1@hosts ~] $ su test
Password: 
[test@hosts ~]$

Now I want to create a shell script (example: login.sh) to switch user without entering password.

My shell script is:

su - test
test   # The password of user test

But it still needs password entering.

How can the shell script accept the password? Thanks in advance!!

Marslo
  • 1,241

1 Answers1

1

Actually, I found another method to switch the user without password (Even if the new user needs password authentication).

That is using ssh

Alias file in user1:

alias tt="ssh test@127.0.0.1"

And cat the user1's id_rsa.pub to test's authorized_keys: user1:

  • user1: create ssh public key: rsa_id.pub

    $ ssh-keygen -t rsa

    press yes if asking...

  • upload the user1's public key to test's directory (this step needs input the password):

    $scp id_rsa.pub test@127.0.0.1:/home/test

  • add the rsa_id.pub into .ssh/authorized_keys

    $ su - test

    Password

    $ cd $ cat rsa_id.pub >> .ssh/authorized_keys

    $ chmod 644 .ssh/authorized_keys

Then switch user by using tt

$ tt
Last login: Mon Jan 28 20:27:34 2013 from localhost
[test@host ~]$
Marslo
  • 1,241