| Back to unit 8. | Unit 9 notes (HTML) | Unit 9 summary (ASCII). | On to unit 10. |
The unit contains the following exercises.
| alm | Use the alarm signal | (question) |
| pip | Implement a pipe | (question) |
| pop | Use of "popen" | (question) |
| pps | Two-way pipes | (question) |
| trp | Trap break-in | (question) |
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