[TUHS] ETXTBSY

[Dan Cross via TUHS]

On Fri, Oct 17, 2025 at 10:55 AM ron minnich via TUHS <tuhs at tuhs.org> wrote:
> This came up in the context of 9P, in a discussion with a friend, and I got
> wondering when it came into UNIX.

It was in V4 in `exec`, so very early on.  5th Edition grew checking
in `access` with a possible `ETXTBSY` return.

        - Dan C.