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Introduction to Linux - A Hands on Guide
This guide was created as an overview of the Linux Operating System, geared toward new users as an exploration tour and getting started guide, with exercises at the end of each chapter.
For more advanced trainees it can be a desktop reference, and a collection of the base knowledge needed to proceed with system and network administration. This book contains many real life examples derived from the author's experience as a Linux system and network administrator, trainer and consultant. They hope these examples will help you to get a better understanding of the Linux system and that you feel encouraged to try out things on your own.
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Here is one for you, give it a shot; write random figures to a file, the file name must be specified in args, you should test that a file name is specified, you should also test that the file doesn't already exist. The file size will be a random length, between 0 and 94 blocks.
You should expand it further by allowing the user to specify in args what they want the file to be filled with, including nul characters and specifically specified characters.
Further expansion; make the script fail if not run as root.
- Thats a script I give as a suggestion for students
that should pique your curiosity and you'd want to make sure you understand it all. (No need to memorize it all of course).
Secondly, start reading through the Programming Forum and try to solve as many qns as possible.
For research/study purposes, it doesn't matter if you go back through old qns, you'll still learn a lot by looking at other peoples answers.
Do you have any programming experience? Even asking my wife, we struggled to find too many examples where ! didn't mean 'not'. If you don't have any experience, you ought to go back to those *too* beginner exercises you seemed to oppose