• NAME
  
  atd - run jobs queued for later execution
• SYNOPSIS
  
  atd load_avg ] batch_interval ]
• 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) .

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