this post was submitted on 14 Jun 2024
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Programming
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Why?
Because it's the foundation of a lot of cross-platform code, from the standard libraries in various programming languages to innumerable shell scripts.
Unless all the computing devices you use run Windows, you probably depend on POSIX, whether you have direct contact with it or not.
Shell scripts were a mistake. The weirdness you have to remember to safely stop executing when something fails is mind-boggling.
I'm so glad nushell exists and doesn't need any configuring to just do the reasonable thing and stop executing when something fails.
nushell scripts aren't shellscripts?
I usually write “POSIXy shell” but I thought that was clear from context this time.
The problem is that exit statuses !=0 aren't treated as error by default (with a way to turn that off for individual expressions). Instead you have to set multiple settings and avoid certain constructs in bash/ZSH/...
Everything that works like a modern programming language by default is fine of course