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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
If you're interested in more shell stuff, read the Bash Manual. It's not very long and it's quite enjoyable: https://www.gnu.org/software/bash/manual/bash.html
Run all your scripts through https://www.shellcheck.net/ (you can install it locally too) and correct all errors it finds, click the explanation pages to understand why. In future, improve your style so you don't generate errors.
Here's some more I've found useful:
You might enjoy Tup[1] if you've not checked it out before.
[1]: https://gittup.org/tup/
ccache https://ccache.dev/ is great for C/C++, but it would be excellent if it exposed a more generic interface for use in the way this article describes.