Ubuntu Unleashed 2015 Edition: Covering 14.10 and 15.04, Tenth Edition

Managing Users

Users must be created, assigned a UID, provided a /home directory, provided an initial set of files for their home directory, and assigned to groups so that they can use the system resources securely and efficiently. The system administrator in some situations might want or need to not only restrict a user’s access to specific files and folders, but also the amount of disk space an account may use.