Introduction to Linux in HPC/The vim text editor

HPC.NRW
Other HPC Courses
1.	Gprof Tutorial
2.	OpenMP in Small Bites
Introduction to Linux in HPC
1.	Background and History
2.	The Command Line
3.	Directory structure
4.	Files
5.	Text display and search
6.	Users and permissions
7.	Processes
8.	The vim text editor
9.	Shell scripting
10.	Environment variables
11.	System configuration
12.	SSH Connections
13.	SSH: Graphics and File Transfer
14.	Various tips

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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