Introduction to Linux in HPC/Shell scripting

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HPC.NRW
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


Video


Quiz

Which bash command below assigns "value" to variable var?

var="value"
var = "value"
var=="value"

Exercises in Terminal (slides 115 - 116) and solution (slide 117)

1. a. Write a script that
   b. Prints an environment variable
   c. Saves the output of the date command to a variable
   d. Sleeps briefly
   e. Prints the new and old date and time
2. Find a way to execute a script without setting execute permissions.
3. Find out how to do other programming things in bash (e.g. functions, classes). How convenient do they look?
4. Look at different ways you can define if conditions.
5. Find out what different types of quotes (single ' vs. double ") do?
6. create an shell variable MYIDENTITY and export it as below: 
   $ export MYIDENTITY=whoami
   How will you list the shell variable MYIDENTITY?
   Execute the shell variable MYIDENTITY, what is the output? 


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