# usermod > Modifies a user account. > See also: `users`, `useradd`, `userdel`. > More information: . - Change a username: `sudo usermod --login {{new_username}} {{username}}` - Change a user id: `sudo usermod --uid {{id}} {{username}}` - Change a user shell: `sudo usermod --shell {{path/to/shell}} {{username}}` - Add a user to supplementary groups (mind the lack of whitespace): `sudo usermod --append --groups {{group1,group2,...}} {{username}}` - Change a user home directory: `sudo usermod --move-home --home {{path/to/new_home}} {{username}}`