UNIX: conceitos avançados e programação do shell.

Abstract

We have witnessed, in the last two decades, great improvements in hardware technology. Powerful computers have been realeased in to the marketplace with increased frequency. However, despite the enhacements in technological features, the prices go down. It means that the cost of time spent to use computers diminishes every day. Now, the problems come with software professionals. Software produced to run in sophisticated machines are full of complexity and, as a matter of fact, very expensive. The main purpose of this work is to sketch some concepts on which lies the UNIX Operational Environment Philosophy. This philosophy allows software designers to produce more and more in less time. In others words, it enhances productivity.