How do I change or rename username in Linux? You need to use the usermod command to change user name under a Linux operating systems. This command modifies the system account files to reflect the changes that are specified on the command line. Do not edit /etc/passwd file by hand or using a text editor such as vi.

How do I change my Linux username and password?

Linux: Reset User Password

1. Open a terminal window.
2. Issue the command sudo passwd USERNAME (where USERNAME is the name of the user whose password you want to change).
3. Type your user password.
4. Type the new password for the other user.
5. Retype the new password.
6. Close the terminal.

How do I change my username in Ubuntu?

Change the Username and Hostname on Ubuntu

1. Change the username. At the start screen press Ctrl+Alt+F1 . Log in using your username and password. …
2. Change the hostname, which is the computer name. Type the following command to edit /etc/hostname using nano or vi text editor: sudo nano /etc/hostname. …
3. Change the password. passwd.