Chapter 12. External Filters, Programs and Commands

Table of Contents
12.1. Basic Commands
12.2. Complex Commands
12.3. Time / Date Commands
12.4. Text Processing Commands
12.5. File and Archiving Commands
12.6. Communications Commands
12.7. Terminal Control Commands
12.8. Math Commands
12.9. 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.