| Create a new group | groupadd |
| Delete a group | groupdel |
| Modify the definition of a specified group | groupmod |
| Create a new user | useradd |
| Delete a user | userdel |
| Modify a user account | usermod |
| Update a user’s password | passwd |
| Edit password, group, shadow-password (Updates etc/shadow) | vipw |
| Edit password, group, shadow-group (Updates etc/gshadow) | vigr |
| Change password policy | chage |