unix编程的经典原则

摘录自The Art of Unix Programming
Modularity: Write simple parts connected by clean interfaces.
Clarity: Clarity is better than cleverness.
Composition: Design programs to be connected with other programs.
Separation: Separate policy from mechanism; separate interfaces from engines.
Simplicity: Design for simplicity; add complexity only where you must.
Parsimony: Write a big program only when it is clear by demonstration that nothing else will do.
Transparency: Design for visibility to make inspection and debugging easier.
Robustness: Robustness is the child of transparency and simplicity.
Representation: Fold knowledge into data, so program logic can be stupid and robust.
Least Surprise: In interface design, always do the least surprising thing.
Silence: When a program has nothing surprising to say, it should say nothing.
Repair: Repair what you can — but when you must fail, fail noisily and as soon as possible.
Economy: Programmer time is expensive; conserve it in preference to machine time.
Generation: Avoid hand-hacking; write programs to write programs when you can.
Optimization: Prototype before polishing. Get it working before you optimize it.
Diversity: Distrust all claims for "one true way".
Extensibility: Design for the future, because it will be here sooner than you think.

上述原则归结为一个词，就是KISS：keep it simple, stupid