Any other alternative to at

[Ralf Mardorf]

On Mon, 2018-02-19 at 02:21 +1100, Karl Auer wrote:
>     sleep 3600 ; myprog

JFTR since my domain is real-time audio, I don't need such delays, but
actually for my old machine with HDDs, my scripts sometimes required to
use delays. For example, to ensure that app A already is ready for
usage, before app B gets started, I used something like "sleep 2". A
pitfall when writing and testing such a script was the cache. Once an
app already was launched one time, "sleep 0.5" died the job, but after a
reboot, when the app wasn't in the cache, this 0.5 seconds delay was too
short, a 2 seconds delay was needed.