Switch commands between Linux Super Users and common users, and linux Super Users

Switch commands between Linux Super Users and common users, and linux Super Users

The default logon permission is normal user permissions.
Show $ Operator

Tree @ ubuntu:/usr $

Switch super user permissions from common users:

Sudo su

Tree @ ubuntu:/usr $ sudo su

Enter Password

[Sudo] password for tree:

After entering the password, you can switch to the Super User.

Switching from a Super User to a common user:
Su User Name

Root @ ubuntu:/usr # su tree

Switching from a Super User to a common user does not require a password. Enter the preceding command and press Enter.

Tree @ ubuntu:/usr $

In this way, you can switch back to a common user.