Command-line tools for the HPC administrator

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Summary

I hope in this article that I have pointed out some useful commands for HPC administration. Although the commands tend to be very simple, they can be very powerful (e.g., watch); they are also very useful for plain old Linux administration, not just for HPC. Keep these commands close by on a Post-it note; when you're beginning to debug an issue, a glance at the list will remind you to start with simple tools. You can move on to the "fancy" solutions after you have found the problem. These tools have saved my bacon more than one time, and I hope they help you.

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