- Finding files
, Finding information about the system
, Date/Time/Calendars
, Controlling Processes
, Internet Specific Commands
, Remote Administration Related
, Standard Wildcards (globbing patterns)
, Regular Expressions
- reference, Who would want to read this guide? , Who would not want to read this guide? , The command-line history , Working with files and folders
- references, Contributors , Internet Specific Commands , General Further Reading
- referencing, Contributors
- referred, The Unix Tools Philosophy
- reflected, Users/Groups
- regarded, Disclaimer
- regardless, Finding files
- regular, Finding Text Within Files
- regular expression, Mass Rename/copy/link Tools , Controlling Processes
- regular expressions, Finding files , Finding Text Within Files
- rel, Miscellaneous
- relationship, Standard Wildcards (globbing patterns) , Regular Expressions
- Relative paths, Moving around the filesystem
- release number, Finding information about the system
- relevance, Miscellaneous
- relevant, Finding information about partitions , Text manipulation tools , Security , File Permissions , Miscellaneous
- reliable, Working with files and folders
- reloaded, Text Viewing Tools
- remote, Mounting and Unmounting (Floppy/CDROM/Hard-drive Partitions) , Internet Specific Commands , Remote Administration Related , rsync
- remote machines, Network Commands
- remotely, Remote Administration Related
- removable,

