I've spent the morning trying to find the answer, and I don't have one. But I figured I'd share what I did gather. [N] 1982 4.1BSD [?] 1992 POSIX.2 (IE

I've spent the morning trying to find the answer, and I don't have one. But I figured I'd share what I did gather. [N] 1982 4.1BSD [?] 1992 POSIX.2 (IEEE Std 1003.2-1992) [Y] 1993 FreeBSD 1.0 (though it wasn't mentioned in the man page) [Y] 1994 GNU find 4.0 [?] 2001 POSIX.1-2001 (IEEE Std 1003.1-2001) [Y] 2004 POSIX.1-2004 (IEEE Std 1003.1-2004) Edit: Nevermind, I have an answer: In on 1990-04-17, Keith Bostic made a commit with the message "new version derived from Cimarron Taylor's", which introduced it to BSD between 4.3-Tahoe and 4.3-Reno. Shortly after, on 1990-06-03, David MacKenzie added an entry to the ChangeLog that added it to GNU find 1.2.