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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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I am very much a newbie when it comes to Linux scripting. I have however been summoned to write a simple script in which I am having difficulty even getting started. If anyone can help me out it would be greatly appreciated! Thanks in advance
Here are the requirements:
Write a script named file-info that includes the following:
1. Accepts a directory as an optional command line parameter.
2. Clears the screen.
3. Displays an error message and terminates if more than one parameter is provided.
4. Uses the current directory if no parameter is provided.
5. Displays an error message and terminates if the provided parameter is not a directory
6. For the directory to be processed, displays a single line of information about each regular file within it: file name, file size, file owner (in that order). For any file that is zero bytes in length, the script is to offer to delete the file, accepting only y/n responses and then proceeding accordingly.
7. Contains appropriate documentation and error checking. (Hint: the following command can be used to set the values of positional parameters: set -- $(ls –l filename) This may be useful in this script although the script can be written using other commands already in your repertoire.)
From the way the text is phrased it seems fairly clear this is some form of coursework / homework. we aren't here to do your learning for you. we can help you, sure, but that means we can get you past a syntax issue, a confusion over the right tool to do a single task... we can't tell you how to do all that.