Introduction to Linux in HPC/Linux Directory Structure

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

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1. Which one is the top directory in Linux?

	/
	/home
	C:\

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2. The command cd without arguments : if you start in var/log/ and run cd with no arguments, what do you expect will happen?

	Nothing it stays in /var/log/
	It goes to your home directory
	It goes to the filesystem root
	The shell stops having a working directory
	It’s an error
	The shell prompt turns into a shark and eats you

Warning:

no undo and make sure what you want to do (page 48)

Exercises in Terminal (slide 49)

1. Go to a specific subfolder of a folder (example: cd Documents/courses/ ) and get back to the home directory using cd command. List 3 different ways to do it using one command. check after every action your path with pwd command.

ExpandAnswer:

      cd
      cd ~
      cd $HOME
       the last option $HOME is an enviornment variable. You will learn about enviornment variables later.

2. Go to the directory /tmp and jump between /tmp and your home directory back and forth. check after every action your path with pwd command.

ExpandAnswer:

       cd /tmp
       cd -
       cd - with cd - you change back to the previous working directory, pass the dash - character as an argument to the cd command.

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