Difference between revisions of "Introduction to Linux in HPC/Processes"
Introduction to Linux in HPC/Processes
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- Manually by user | - Manually by user | ||
|| Explanation: Wrong. | || Explanation: Wrong. | ||
| − | + | - Explicitly at startup by parameters. | |
|| Explanation: Wrong. | || Explanation: Wrong. | ||
</quiz> | </quiz> | ||
Revision as of 17:01, 30 November 2020
| Tutorial | |
|---|---|
| Title: | Introduction to Linux in HPC |
| Provider: | HPC.NRW
|
| Contact: | tutorials@hpc.nrw |
| Type: | Multi-part video |
| Topic Area: | HPC Platforms |
| License: | CC-BY-SA |
| Syllabus
| |
| 1. Background and History | |
| 2. The Command Line | |
| 3. Linux 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 | |
Video
Quiz
What does PID stand for?
How are the permissions of a process set?
Exercises in Terminal
1. Start a process (e.g. sleep 10m) and kill it from a second console.
| Answer: |
Start the process: sleep 10m
Go to a second console.
Start the process manager: top
Filter process from your user account: press 'u' and type in your account name.
Identify the job ('sleep') and note the associated PID.
Kill it: press 'k' and type in the PID from previous step.
|
2. Start a process, bring it into background/foreground.
| Hint: |
To bring a process to background:
Press Ctrl-Z (pause the process).
Type bg (bring it to background).
To bring a process to foreground:
Display running "jobs" and identify the job ID: jobs
Type fg <job-ID> (bring it to foreground).
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