NAME
atrun – run jobs queued for later execution
SYNOPSIS
atrun [-l load_avg] [-d]
DESCRIPTION
The atrun utility runs commands queued by at(1). It is invoked periodically by launchd(8) as specified in the com.apple.atrun.plist property list. By default the property list contains the Disabled key set to true, so atrun is never invoked.
Execute the following command as root to enable atrun:
launchctl load -w /System/Library/LaunchDaemons/com.apple.atrun.plist
At every invocation, atrun starts all the jobs in the lowercase queues whose start time has elapsed. In addition, if the load average over the last minute was less than the specified limit, then a maximum of one batch job (denoted by the uppercase queues) is started.
Before starting a job, atrun checks the status of its owner's account with pam(3) and refuses to run the job if the account is unavailable, e.g., locked out or expired.
OPTIONS
- -l load_avg
-
Specify a limiting load factor, over which batch jobs should not be run, instead of the default of 1.5 * number of active CPUs.
- -d
-
Debug; print error messages to standard error instead of using syslog(3).
FILES
- /etc/pam.d/atrun
-
pam.conf(5) configuration file for atrun
- /usr/lib/cron/jobs
-
Directory containing job files
- /usr/lib/cron/spool
-
Directory containing output spool files
SEE ALSO
at(1), pam(3), syslog(3), pam.conf(5), launchd(8)
AUTHORS
Thomas Koenig ⟨[email protected]⟩