11/3: Shell programming

• Kernel summary
• Dirty COW vulnerability
  • Register article

• More on pipes
  • Literate programming 1
  • Literate programming 2, including Knuth’s solution to Bentley’s problem, and McIlroy’s tiny pipe-based solution

McIlroy: “Knuth has shown us here how to program intelligibly, but not wisely. I buy the discipline. I do not buy the result. He has fashioned a sort of industrial-strength Faberge egg—intricate, wonderfully worked, refined beyond all ordinary desires, a museum piece from the start.”

• Exercise