6.20 Other I/O

• Simple numeric output: Predefined formats
• Formatted numeric output: Formatted (pictured) output
• Floating-point output
• Miscellaneous output
• Displaying characters and strings: Other stuff
• Terminal output: Cursor positioning etc.
• Single-key input
• Line input and conversion
• Pipes: How to create your own pipes
• Xchars and Unicode: Non-ASCII characters
• i18n and l10n: Internationalization and Localization
• Substitute: Text macro substitution
• CSV Reader: Data import facility