How to write a shell script

Introduction
A shell is a command line interpretor. It takes commands and executes
them. As such, it implements a programming language. The Bourne
shell is used to create shell scripts — ie. programs that are
interpreted/executed by the shell. You can write shell scripts with
the C-shell; however, this is not covered here.
Creating a Script
Suppose [...]

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About vi editor

 Editor, vi tutorial

vi Editor, Learn vi
About vi editor

vi is Found on Nearly Every Unix Computer

vi is the standard Unix editor
vi is Powerful and Fast

Your terminal displays a section of the file you are editing

vi can do anything you want

You don’t need to remove your fingers [...]

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