Introduction to Linux in HPC/The vim text editor

This part of the Linux tutorials introduces the vim text editor and describes its main features and use cases. A short explanation of the most important commands paired with examples on how to use them allow the user to delve right in. The tutorial demonstrates the basics, like opening/writing files or moving within the text as well as the most often employed tasks like search&replace or copy&paste which makes it interesting both to a complete beginner and more intermediate user. The vim text editor's main advantage is that it's present in most unix operational systems, futhermore it's highly configurable and provides an extensive plugin system.

Video

( Slides as pdf)

Quiz

1. How to enter the insert mode of vim?

	press enter key
	press i key
	press Esc key

2. How would you open a file in read-only mode using the vim editor?
Hint: In terminal man vim

Click and submit to see the answer

Info:

If you forget in which mode you are in while using vim, just keep pressing Esc.

Exercises in Terminal (slide 100)

1.  Create a vim file and write some text in it with insert (pressing i) and than undo and redo the changes. 

Answer:

     $ vim test.txt 
     In vim editor press i to insert text and write few lines.
     Press Esc than press u (for undo) after that press ctrl + r on keyboard for redo.
        - u: undo last change (can be repeated to undo preceding commands).
        - Ctrl-r: Redo changes which were undone (undo the undos).

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