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> Most people who work with nix systems work on many systems

[citation needed] Lots of people using macOS and even Linux without being server administrators.

While there has been a influx in command line usage due to mac adoption (has actually been flat for a few years now) most people who find their way to a terminal at some point or another will find their way to ssh.

Also just because you have access to many systems it does not make you a server administrator. I have access to tens of thousands and I am not a system administrator.

Over the years of working with Linux the one thing I have learned that saved me many times and made me productive was to learn the defaults and use the tools that you will most likely find on all systems. If you don't you will find your self bumbling around and feeling lost if you ever log into a system that is missing your favorite modification / customization.

This is the exact reason I have held off on fully switching to something like zsh or fish as well. I have a few thousand servers and basically the only guaranteed thing is that they will have some version of bash or at least sh installed.

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