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ATD
Section: Linux Programmer's Manual (8)Updated: Mar 1997
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NAME
atd - run jobs queued for later executionSYNOPSIS
atd [-l load_avg] [-b batch_interval] [-d] [-s]DESCRIPTION
atd runs jobs queued by at(1).OPTIONS
- -l
- Specifies a limiting load factor, over which batch jobs should not be run, instead of the compile-time choice of 1.5. For an SMP system with n CPUs, you will probably want to set this higher than n-1.
- -b
- Specifiy the minimum interval in seconds between the start of two batch jobs (60 default).
- -d
- Debug; print error messages to standard error instead of using syslog(3).
- -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. A script invoking atd -s is installed as /usr/sbin/atrun for backward compatibility.
WARNING
atd won't work if its spool directory is mounted via NFS even if no_root_squash is set.FILES
/var/spool/cron/atjobs The directory for storing jobs; this should be mode 700, owner daemon./var/spool/cron/atspool The directory for storing output; this should be mode 700, owner daemon.
/etc/at.allow, /etc/at.deny determine who can use the at system.
SEE ALSO
at(1), atrun(1), cron(8), crontab(1), syslog(3), at.deny(5), at.allow(5).BUGS
The functionality of atd should be merged into cron(8).
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