Some people like to refer to OS X as UNIX-like when it’s actually a UNIX. There was a time when it was UNIX-like and some people liked to refer to it as a UNIX, but it’s not now.
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Support SICPers on Patreon!
Support SICPers on Patreon! APPropriate Behaviour
The book about all the things software writers do that aren't writing software.
FSF
