Ubuntu modifies the user name and modifies the home directory name

1. Create a new user User2

sudo adduser temporary

sudo adduser temporary sudo

2. From User1 logout. Enter new user User2, modify User1 's name and home directory name

sudo usermod-l new_username-d/home/new_username-m user1

3. Logout from User2, enter User1 (new_username) and delete User2.

sudo deluser temporarysudo rm -r /home/temporary

Usermod-l new_username-d/home/new_username-m Old_username
Permissions-how do I change my username? -Ask Ubuntu

Ubuntu modifies the user name and modifies the home directory name