# gpasswd > Administer `/etc/group` and `/etc/gshadow`. > More information: . - Define group administrators: `sudo gpasswd {{[-A|--administrators]}} {{user1,user2}} {{group}}` - Set the list of group members: `sudo gpasswd {{[-M|--members]}} {{user1,user2}} {{group}}` - Create a password for the named group: `gpasswd {{group}}` - Add a user to the named group: `gpasswd {{[-a|--add]}} {{user}} {{group}}` - Remove a user from the named group: `gpasswd {{[-d|--delete]}} {{user}} {{group}}`