How can I change the username that is the only one without interrupting the processes?

Question

linux

We have:
[email protected]:~$
user is the only one and he has the same admin rights
How can I change his name (to himself) from this user's account without interrupting the processes associated with this user and without creating a new one, copying the admin privileges to him?

Answer 1

If you read the mana for usermod , you will notice that
Therefore, renaming yourself is quite problematic. If you allow login for root (it is disabled by default in ubuntu) or create another user with the necessary rights, then you can log out with the current user "user", go as root (or that new user) and rename the user "user".

Answer 2

usermod user -l newusername

Answer 3

When usermod user -l newusername displays
usermod: user User is currently used by process 2550
If you start killing processes by pid, the system is rebooted and it becomes possible to enter it only as a guest without any rights at all
True, upon repeated reboot, the old username returns to the login option .
So far no answer: how to rename without stopping related processes?

Answer 4

usermod -l newusername -m -d /home/newusername currentusername exit