atd − run jobs queued for later execution
atd [−l load_avg] [−b batch_interval] [−d] [−f] [−s]
atd runs jobs queued by at(1).
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−l |
Specifies a limiting load factor, over which batch jobs should not be run, instead of the compile-time choice of 0.8. For an SMP system with n CPUs, you will probably want to set this higher than n−1. | ||
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−b |
Specify the minimum interval in seconds between the start of two batch jobs (60 default). | ||
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−d |
Debug; print error messages to standard error instead of using syslog(3). This option also implies −f. | ||
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−f |
Run atd in the foreground. | ||
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−s |
Process the at/batch queue only once. This is primarily of use for compatibility with old versions of at; atd −s is equivalent to the old atrun command. |
atd won’t work if its spool directory is mounted via NFS even if no_root_squash is set.
/var/spool/atd The directory for storing jobs; this should be mode 700, owner at.
/var/spool/atd The directory for storing output; this should be mode 700, owner at.
/etc/at.allow, /etc/at.deny determine who can use the at system.
at(1), at.deny(5), at.allow(5), cron(8), crontab(1), syslog(3).
The functionality of atd should be merged into cron(8).