Question on at and atq commands

[Jason Clinton]

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Brian Kelsay wrote:

| This will probably sound stupid, but I thought that at was only used
| on floppy linuxes because it is small.  I've only really set up
| scheduled jobs w/ cron.  Are at AND cron normally installed on
| desktop and server default distro installs?  If they are both there,
| then I haven't been paying attention.  What is the difference between
| the two, as far as functionality?

atd is used for things that occur once. cron is used for things that
occur repeatedly.

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