I'm writing about my 5 favorite unix design principles on my blog this week, and it got me wondering what others' favorite unix design principles are? For reference, mine are: - Rule of Separation (from TAOUP ) - Let the Machine Do the Dirty Work (from Elements of Programming Style) - Rule of Silence (from TAOUP ) - Data Dominates (Rob Pike #5) - The SPOT (Single Point of Truth) Rule (from TAOUP ) Tyler