at command in aix

Hi

I use this "at" command to unmount 12 filesystems in my aix server

echo "ksh /usr/local/bin/umount.sh" | at now

i want to schedule it on a daily basis. I know that it can be done via crontab. But Im just curious to know if daily wise scheduling can also be done via the "at" command ? :confused:

at is for discrete events, cron is for repeating ones.

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