Cannot turn off password [duplicate]

Question

Possible Duplicate:
Why does Ubuntu force users to create a password upon installation?

Cannot authenticate without a password It did not fix my problem. If I create an admin account without password in the first place, what should I enter in place of the password? Also, how to perform administrative actions (such as sudo or downloading apps from Ubuntu Software Center) without password? How to remove the password entirely from my admin accounts?

Note: In Windows 7, when you do not set a password or remove the existing password for an administrator, that administrator can be used to authenticate without a password. Leave the password blank and you can do anything.

Answer 1

This is a security feature. If your administrator (or 'root') account didn't have a password, it would be ridiculously easy for a virus or other malicious program to cause a lot of trouble. So, really, you shouldn't try to disable it.

If you're doing a lot of stuff using sudo in one terminal, you can always use sudo su - to go into administrator mode in that terminal, and then omit sudo in that session.

Answer 2

You should use a password! But if you want to avoid retyping it during a session (e.g. sudo) then try this

visudo

add the following line

 admin      ALL = NOPASSWD: ALL

Save and quit. This allows the user admin to run everything (sudo apt-get ...) without password

If you want that for a whole group of accounts, add them to a group, e.g. admin and visudo again this time with this line

%admin      ALL = NOPASSWD: ALL

This means any member of the admin GROUP is allowed to do everything without password.