[NCLUG] at command

[Matt Jibson]

> Anyone know in detail how the "at" command runs?  What I am looking for
> is how does it que a job?  It almost seems that is sets up a temporary
> cron job, but a friend of mine seem to think it creates a sleep loop?

Use the source, Luke:
http://www.openbsd.org/cgi-bin/cvsweb/src/usr.bin/at/

at.c appears to use a cron job, I think.  The man pages for at that I'm using 
(Free and Open BSD's) both reference cron(8) at the bottom, so that's what it 
looks like.