No relation to the sports channel.

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Joined 2 years ago
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Cake day: June 9th, 2023

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  • But if someone creates a file called HEAD, should it overwrite a file called head?

    That shouldn’t matter to the “nontechnical” end-user at all. To the nontechnical user, even the abstraction of “creating a file” has largely gone away. You create a document, and changes you make to it are automatically persisted to storage, either local or cloud.

    Only the technical command-line user cares about whether /usr/bin/HEAD and /usr/bin/head are the same path. And only in a specific circumstance — such as the early days of Mac OS X, where the Macintosh and Unix cultures collided — could the bug that I described emerge.


  • I recall a case-insensitivity bug from the early days of Mac OS X.

    There are three command-line utilities that are distributed as part of the Perl HTTP library: GET, HEAD, and POST. These are for performing the HTTP operations of those names from the command line.

    But there’s also a POSIX-standard utility for extracting the first few lines of a text file. It’s called head.

    I think you see where I’m going with this. HEAD and head are the same name in a case-insensitive filesystem such as the classic Mac filesystem. They are different names on a Unix-style filesystem.

    Installing /usr/bin/HEAD from libwww-perl onto a Mac with the classic filesystem overwrote /usr/bin/head and broke various things.














  • I drifted slowly from right-libertarian to a more leftish position: pro-union, pro-social-programs, skeptical of the compatibility of unregulated capitalism with individual freedom. Still no fan of tankies.

    This wasn’t from anyone sitting down and trying to convince me, though. Part of it was discovering how close right-libertarianism had always been to white-supremacism: some old Ron Paul newsletters were unpleasantly enlightening. Part was seeing people who called themselves “libertarians” line up with the far right to support state violence, especially against black and brown people. And heck, part was from getting richer and seeing how that worked.

    I have a lot of sympathy for the frustrations that get young men into right-wing positions and occasionally I try to puncture some of the nonsense they’re being fed.