Introduction to Linux in HPC - Revision history

Jan-steiner-c1cc@uni-bonn.de at 07:12, 12 September 2025

2025-09-12T07:12:31Z

Tim-cramer-c1e6@rwth-aachen.de at 14:35, 21 December 2020

2020-12-21T14:35:14Z

Jan-steiner-ac29@uni-siegen.de: Contact address changed to helpdesk

2020-11-29T19:49:38Z

Contact address changed to helpdesk

Christian-siebert-cbc6@uni-duesseldorf.de at 14:19, 27 November 2020

2020-11-27T14:19:30Z

Jan-steiner-ac29@uni-siegen.de at 14:16, 27 November 2020

2020-11-27T14:16:52Z

Jan-steiner-ac29@uni-siegen.de at 14:14, 27 November 2020

2020-11-27T14:14:30Z

Jan-steiner-ac29@uni-siegen.de at 14:09, 27 November 2020

2020-11-27T14:09:31Z

Marc-andre-hermanns-bc32@rwth-aachen.de: Embed links to parts in their heading

2020-11-20T12:37:55Z

Embed links to parts in their heading

Marc-andre-hermanns-bc32@rwth-aachen.de: Providing a basic Overview so the initial page is not so empty and provides initial orientation for readers.

2020-11-20T12:24:21Z

Providing a basic Overview so the initial page is not so empty and provides initial orientation for readers.

Marc-andre-hermanns-bc32@rwth-aachen.de: Moving category selection to bottom of the document to avoid initial linebreaks

2020-11-19T10:36:46Z

Moving category selection to bottom of the document to avoid initial linebreaks

@@ Line 52: / Line 52: @@
 === [[Introduction_to_Linux_in_HPC/Processes | Processes ]] ===
-This session discusses the nature of processes on Linxu, including parent and child processes, and basic tools to handle and query your own processes.
+This session discusses the nature of processes on Linux, including parent and child processes, and basic tools to handle and query your own processes.
 === [[Introduction_to_Linux_in_HPC/The_vim_text_editor | The vim Text Editor ]] ===

@@ Line 14: / Line 14: @@
 Each tutorial consists of a '''short video''', followed by a couple of quiz questions, and some practical '''exercises'''. You should '''have a Linux console ready''' for the latter, this can be either on your own PC or on a cluster. Everything in the tutorial is distribution-independent. We recommend using a '''bash shell''', as this shell was used for the demonstrations (bash is often the default shell, e.g. in Ubuntu, Mint and Red Hat Linux). Most, but not all, topics in this tutorial are shell-independent.
-If you have any questions or encounter problems, you can contact us via e-mail at [mailto:helpdesk@hpc.nrw helpdesk@hpc.nrw].
+If you have any questions or encounter problems, you can contact us via e-mail at [mailto:tutorials@hpc.nrw tutorials@hpc.nrw].
 == Who created this tutorial? ==

@@ Line 14: / Line 14: @@
 Each tutorial consists of a '''short video''', followed by a couple of quiz questions, and some practical '''exercises'''. You should '''have a Linux console ready''' for the latter, this can be either on your own PC or on a cluster. Everything in the tutorial is distribution-independent. We recommend using a '''bash shell''', as this shell was used for the demonstrations (bash is often the default shell, e.g. in Ubuntu, Mint and Red Hat Linux). Most, but not all, topics in this tutorial are shell-independent.
-If you have any questions or encounter problems, you can contact us via e-mail at [mailto:jan.steiner@uni-siegen.de jan.steiner@uni-siegen.de].
+If you have any questions or encounter problems, you can contact us via e-mail at [mailto:helpdesk@hpc.nrw helpdesk@hpc.nrw].
 == Who created this tutorial? ==

@@ Line 18: / Line 18: @@
 == Who created this tutorial? ==
-This tutorial has been developed within the framework of the [https://hpc.dh.nrw/ HPC.NRW] project. It is part of a [[:Category:Tutorials|series of online tutorials]] on various HPC-related topics, all of which were created by HPC.NRW members. Other topics are for example [[OpenMP_in_Small_Bites|OpenMP]] and [[Gprof_Tutorial|gprof]], and new tutorials continue to be developed.
+This tutorial has been developed within the framework of the [https://hpc.dh.nrw/ HPC.NRW] project. It is part of a [[:Category:Tutorials|series of online tutorials]] on various HPC-related topics, all of which were created by HPC.NRW members. Other topics are for example [[OpenMP_in_Small_Bites|OpenMP]] and [[Gprof_Tutorial|Gprof]], and new tutorials continue to be developed.
 The speaker is '''Jan Steiner''' of the University of Siegen. Jan works at the university's center for information and media technologies (ZIMT) and has been giving Linux introduction and other courses at Uni Siegen for several years. Video editing was done primarily by Marc-André Hermanns and Martin Errenst of RWTH Aachen and Uni Wuppertal, respectively. The quiz section was primarily developed by Xin Wu and Mukund Pondkule at the University of Paderborn. Other contributions came from practically all HPC.NRW members.

@@ Line 14: / Line 14: @@
 Each tutorial consists of a '''short video''', followed by a couple of quiz questions, and some practical '''exercises'''. You should '''have a Linux console ready''' for the latter, this can be either on your own PC or on a cluster. Everything in the tutorial is distribution-independent. We recommend using a '''bash shell''', as this shell was used for the demonstrations (bash is often the default shell, e.g. in Ubuntu, Mint and Red Hat Linux). Most, but not all, topics in this tutorial are shell-independent.
-If you have any questions or encounter problems, you may contact us via e-mail at ??.
+If you have any questions or encounter problems, you can contact us via e-mail at [mailto:jan.steiner@uni-siegen.de jan.steiner@uni-siegen.de].
 == Who created this tutorial? ==

@@ Line 2: / Line 2: @@
 == Introduction ==
-This course has been developed within the framework of {{HPC.NRW}} project. It has been developed for users to get a good working knowledge of Linux to further use it for accessing and using High performance computing (HPC) cluster accounts.
+Welcome to the HPC.NRW Linux Online Tutorial!
 __NOTOC__

@@ Line 9: / Line 9: @@
 == Topics ==
-=== Background and History ===
+=== [[Introduction_to_Linux_in_HPC/Historical_Background | Background and History]] ===
 This session provides a brief background on where Linux and UNIX come from, what different Linux distributions are, and why it is important to have a basic understanding of Linux concepts when interacting with HPC platforms.
-=== The Command Line ===
+=== [[Introduction_to_Linux_in_HPC/The_Command_Line | The Command Line ]] ===
 This session discusses the command line as one of the main ways to interact with HPC platforms.
-=== Directory Structure ===
+=== [[Introduction_to_Linux_in_HPC/Directory_structure | Directory Structure ]] ===
 This session discusses the broad directory layout that exist on Linux to help users' orientation when interacting with the file system.
-=== Files ===
+=== [[Introduction_to_Linux_in_HPC/Files | Files ]] ===
 This session covers basic handling of files on Linux platforms.
-=== Text Display and Search ===
+=== [[Introduction_to_Linux_in_HPC/Text_display_search | Text Display and Search ]] ===
 This session covers basic handling of text files and standard output/error/input streams on Linux systems.
-=== Users and Permissions ===
+=== [[Introduction_to_Linux_in_HPC/Users_and_permissions | Users and Permissions ]] ===
 This session discusses the multi-user nature of Linux and how to restrict or grant access to files on the file system.
-=== Processes ===
+=== [[Introduction_to_Linux_in_HPC/Processes | Processes ]] ===
 This session discusses the nature of processes on Linxu, including parent and child processes, and basic tools to handle and query your own processes.
-=== The vim Text Editor ===
+=== [[Introduction_to_Linux_in_HPC/The_vim_text_editor | The vim Text Editor ]] ===
 This session briefly introduces an ubiquitous and powerful, yet complex, editor on Linux: vim (i.e., VI Improved).
-=== Shell Scripting ===
+=== [[Introduction_to_Linux_in_HPC/Shell_scripting | Shell Scripting ]] ===
 This session covers organizing multiple and recurring sets of command line commands as shell scripts.
-=== Environment Variables ===
+=== [[Introduction_to_Linux_in_HPC/Environment_variables | Environment Variables ]] ===
 This session covers the shell environment and how to set, unset, or modify variables to influence commands and/or shell scripts run in the shell.
-=== System Configuration ===
+=== [[Introduction_to_Linux_in_HPC/System_configuration_files | System Configuration Files ]] ===
 This session covers the basic files that are used by the system to configure and adapt the user environment with so-call RC files.
-=== SSH Connections ===
+=== [[Introduction_to_Linux_in_HPC/SSH_Connections | SSH Connections ]] ===
 This session covers how to log into Linux systems using an SSH client.
-=== SSH Graphics and File Transfer ===
+=== [[Introduction_to_Linux_in_HPC/SSH_Graphics_File_Transfer | SSH Graphics and File Transfer ]] ===
 This session covers how to handle X Window connections and transfer files to and from a Linux system via SSH connections.
-=== Various Tips ===
+=== [[Introduction_to_Linux_in_HPC/Various_tips | Various Tips ]] ===
 This session provides concluding remarks and Ticks & Tricks when interacting with Linux system.
 [[Category:Tutorials]]
 [[Category:Basics]]
 [[Category:Tutorials | Introduction to Linux in HPC]]

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 {{Syllabus Introduction to Linux}}
 == Introduction ==
@@ Line 9: / Line 6: @@
 Linux powers 100% of the world's top 500 supercomputers, the majority of financial trades worldwide, most of the servers powering the Internet, and over two billion Android devices. In short, Linux is everywhere. It appears in many different architectures, from mainframes to server to desktop to mobile and on a staggeringly wide variety of hardware. So learning to work with Linux will certainly help you in many ways.
 __NOTOC__