S
- secondary groups
- UNIX Groups
- UNIX Groups
- security, user ID number reuse and, User ID Numbers
- settings, administering with the User Manager GUI, Administering Advanced Settings With the User Manager GUI
- shadow file
- description, Where User Account and Group Information Is Stored
- fields in, Fields in the shadow File
- SHELL environment variable, Bash and ksh93 Shell Environment Variables
- shells, user initialization files and, Customizing a User Initialization File
- site initialization files, Using Site Initialization Files
- skeleton directories (/etc/skel), Customizing a User's Work Environment
- staff group, UNIX Groups
- starting the User Manager GUI, How to Start the User Manager GUI
- stty command, Locale Variables
- system accounts, User ID Numbers
- system initialization files, User's Work Environment