Difference between revisions of "Introduction to Linux in HPC/Environment variables"

From HPC Wiki
Introduction to Linux in HPC/Environment variables
Jump to: navigation, search
(Add link to PDF slides)
m (Use tutorial navigation template)
Line 104: Line 104:
{{Tutorial Navigation
<div style='text-align: left;float:left;width:33%;'>{{Clickable button|[https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/The_vim_text_editor Previous Page]|color=white}}</div>
| previous = [[Introduction_to_Linux_in_HPC/The_vim_text_editor | The vim Text Editor ]]
<div style='text-align: center;float:left;width:33%;'>{{Clickable button|[https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC Main Menu Page]|color=white}}</div>
| main = [[Introduction_to_Linux_in_HPC | Overview ]]
<div style='text-align: right;float:left;width:33%;'>{{Clickable button|[https://hpc-wiki.info/hpc/Introduction_to_Linux_in_HPC/System_configuration_files Next Page]|color=white}}</div>
| next = [[Introduction_to_Linux_in_HPC/System_configuration_files | System Configuration Files ]]

Revision as of 13:20, 17 November 2020

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


( Slides as pdf)


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

var = "value"

Exercises in Terminal

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. What do different types of quotes (single ' vs. double ") do?
3. 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? 

<< The vim Text Editor


System Configuration Files >>