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Penetration Testing with the Bash shell by Keith Makan

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Chapter 1. Getting to Know Bash

The Bourne Again SHell (bash) is arguably one of the most important pieces of software in existence. Without bash shell's many utilities and the problem-solving potential it gives its users by integrating and interfacing system utilities in a programmable way (called bash scripting), many of the very important security-related problems of the modern world would be very tedious to solve. Utilities such as grep, wget, vi, and awk enable their users to do very powerful string processing, data mining, and information management. System administrators, developers, security engineers, and penetration testers all across the world for many years have sworn by its sheer problem-solving potential and effectiveness in enabling ...

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