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CHAPTER 5
Command Line Basics
In this chapter you will learn about:
•  Using the Linux shell
•  Working with variables
•  Getting help with Linux commands
•  Using Linux text editors
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To use an operating system, some means must be provided for the end user to communicate with it. That is, we need a way to send commands to the operating system. For example, we may need it to run an application, copy a file from an external USB drive, or even shut the system down. You issue these commands through a user interface. Linux provides both a command line ...

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