Piping and Unix Philosophy

About the Unix pipeline, this article is very thorough: http://blog.petersobot.com/pipes-and-filters

Pipeline (pipelines) is a very useful architecture model in modern software engineering, which was first used in Unix system, and there is a saying.

If UNIX is the greatest invention of computer civilization, the pipe pipeline under UNIX is another great invention that follows Unix .

Pipeline to solve the problem, or software design of the cliché design goals-cohesion well-structured classes poly, low coupling. It is a "chain model" to connect different programs or different components, so that they form a straight line of the workflow. So given a complete input, after the various components of the coordinated processing, get the only final output.