In all fairness, the Bash code really did quite a bit more than that proverbial one-liner. But much of it wasn't calling and tying together those external tools

In all fairness, the Bash code really did quite a bit more than that proverbial one-liner. But much of it wasn't calling and tying together those external tools, it was data analysis code that would have been so much simpler in Python. Plus, being a Python shop, any of us could have maintained a Python version, instead of the one engineer who was truly a Bash wizard. Some common sense and manual work might have been even better: just ask everyone in the company to identify the code areas they were familiar with and manually populate the CODEOWNERS files, instead of spending months on a mostly-failed attempt to automate the whole thing. Or, just teach people how to use git blame! After all, many of us touched many different parts of the code. Git blame would tell you immediately who was familiar with the different bits, at a much more granular level than a CODEOWNERS file in a directory.