Chapter 15. External Filters, Programs and Commands

Table of Contents
15.1. Basic Commands
15.2. Complex Commands
15.3. Time / Date Commands
15.4. Text Processing Commands
15.5. File and Archiving Commands
15.6. Communications Commands
15.7. Terminal Control Commands
15.8. Math Commands
15.9. Miscellaneous Commands

Standard UNIX commands make shell scripts more versatile. The power of scripts comes from coupling system commands and shell directives with simple programming constructs.