- stored, Network Configuration
- Streams, Concept Definitions
- string, The command-line history , Help , Usage , Moving around the filesystem , Mass Rename/copy/link Tools , Text Information Tools , Text manipulation tools , Scheduling Commands to run in the background , Regular Expressions
- strings, Help
- structure, Contributors
- style, Moving around the filesystem , Text Information Tools , Text Conversion/Filter Tools , Compression
- su, Finding information about the system , Managing users
- subdirectories, Moving around the filesystem , Finding files , Working with files and folders , File Permissions
- subdirectory, Working with files and folders
- subsections, Wildcards
- subsequent, Standard Wildcards (globbing patterns) , Regular Expressions
- substituted, General Shell Tips , Finding information about the system
- substitution, Finding information about the system
- Subsystem, Network Commands
- successful, Performing more than one command , Controlling Processes
- sudo, Managing users
- suggesting, Text manipulation tools
- suggestions, Feedback , Contributors
- suid, File Permissions
- suited, Who would want to read this guide? , Who would not want to read this guide?
- sum, RPM: Redhat Package Management System
- summarise, Introduction
- summarised, Who would want to read this guide?
- summarises, Working with files and folders
- summary,

