Re: file/directory creation date and time

"John DeSoi (as john at desoi dot dev)" <[email protected]> Sat, 6 Dec 2025 15:57:08 +0000

Newsgroups	gmane.lisp.lispworks.general
Message-ID	<0100019af4619bca-81d8edf0-9f0e-46cb-9bdb-ddd4de7c17dd-000000@email.amazonses.com>

Yes, osicat uses birthtime on darwin. 

Thanks to all for providing ideas and suggestions.

John DeSoi, Ph.D.


> On Dec 5, 2025, at 1:15 PM, Martin Simmons <[email protected]> wrote:
> 
> That's not quite true: some filesystems maintain a birthtime/btime, which is
> the time when the file was created.  You can read it by stat(2) on BSD and
> macOS systems and by statx(2) on newer versions of Linux but LispWorks doesn't
> put in this in the system::stat structure.  E.g. See
> https://man.freebsd.org/cgi/man.cgi?query=stat&apropos=0&sektion=2&manpath=FreeBSD+15.0-RELEASE+and+Ports&arch=default&format=html
> 
> Also, stime is usually called ctime on Unix.