Introduction to Linux in HPC/The vim text editor

HPC.NRW
Other HPC Courses
GPU	Introduction to GPU Programming
GPROF	Gprof Tutorial
Introduction to Linux in HPC
1.	Historical Background
2.	The Command Line
3.	Directory structure
4.	Files
5.	Text display search
6.	Processes and permissions
7.	The vim text editor
8.	Shell scripting environment variables
9.	System configuration files
10.	Various tips
11.	Beyond the cluster
12.	Linux in HPC
13.	SSH Login

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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