February 2019
Beginner
504 pages
10h 47m
English
Content preview from The Linux Command Line, 2nd Edition
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26TOP-DOWN DESIGN
As programs get larger and more complex, they become more difficult to design, code, and maintain. As with any large project, it is often a good idea to break large, complex tasks into a series of small, simple tasks. Let’s imagine we are trying to describe a common, everyday task, going to the market to buy food, to a person from Mars. We might describe the overall process as the following series of steps:
- Get in car.
- Drive to market.
- Park car.
- Enter market.
- Purchase food.
- Return to car.
- Drive home.
- Park car.
- Enter house.
However, a person from Mars is likely to need more detail. We could further break down the subtask “Park ...
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