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ATD(8)                               System Manager's Manual                               ATD(8)

NAME
       atd - run jobs queued for later execution

SYNOPSIS
       atd [-l load_avg] [-b batch_interval] [-d] [-f] [-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 proba‐
               bly want to set this higher than n-1.

       -b      Specify  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).   This
               option also implies -f.

       -f      Run atd in the foreground.

       -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.

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 dae‐
       mon.

       /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), at.deny(5), at.allow(5), cron(8), crontab(1), syslog(3).

BUGS
       The functionality of atd should be merged into cron(8).

                                            2009-11-14                                     ATD(8)

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