#echo "./backup.sh" | at now
#at -f ./backup.sh 07:00 pm
#at -f ./backup.sh 07:00 am
#at -f ./backup.sh noom
#at -f ./backup.sh teatime
#at -f ./backup.sh midnight
#at 22:30
#at -f ./backup.sh now +1 minutes
#at -f ./backup.sh now +1 day
#at -f ./backup.sh now +1 hours
#at -f ./backup.sh +1 weeks
#at -f ./backup.sh +1 months
# atq
ou
#at -l
#tree /var/spool/cron/atjobs/
at -d 8
/etc/at.allow
/etc/at.deny