My V6 manual has cron(VIII) - documentation of /usr/lib/crontab - but no
mention of at.
This is consistent with my recollection - I first saw at in V7.
Mary Ann
On 12/8/20 10:11 AM, ron minnich wrote:
When I got into Unix in 1976 cron and at were both
there.
I got to wondering for no particular reason which came first -- I had
always assumed cron, but ...?
Anyone know?