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ATD(3)                     Linux Programmer's Manual                    ATD(3)



NAME
       atd - run jobs queued for later execution

SYNOPSIS
       atd [-l load_avg] [-b batch_interval] [-d] [-s] [-n]

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 0.8.  For an SMP system with n CPUs, you will probably 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).

       -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.

       -n      Don't fork option.

WARNING
       atd won't work if its spool directory is mounted via NFS even if no_root_squash is set.

FILES
       /var/spool/at The directory for storing jobs; this should be mode 700, owner root.

       /var/spool/at/spool The directory for storing output; this should be mode 700, owner root.

       /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).



at-3.1.10                          Jun 2007                             ATD(3)