1.\" $FreeBSD$ 2.Dd June 17, 2007 3.Dt ATRUN 8 4.Os 5.Sh NAME 6.Nm atrun 7.Nd run jobs queued for later execution 8.Sh SYNOPSIS 9.Nm atrun 10.Op Fl l Ar load_avg 11.Op Fl d 12.Sh DESCRIPTION 13.Nm Atrun 14runs jobs queued by 15.Xr at 1 . 16.Pp 17Root's 18.Xr crontab 5 19file 20.Pa /etc/crontab 21has to contain the line 22.Bd -literal 23*/5 * * * * root /usr/libexec/atrun 24.Ed 25.Pp 26so that 27.Nm 28gets invoked every five minutes. 29.Pp 30At every invocation, 31.Nm 32will start all the jobs in the lowercase queues whose start 33time has elapsed. 34In addition, if the load average over the last minute was less than 35the specified limit then a maximum of one batch job (denoted by the 36uppercase queues) is started. 37.Pp 38Before starting a job, 39.Nm 40will check the status of its owner's account with 41.Xr pam 3 42and refuse to run the job if the account is unavailable, 43e.g., locked out or expired. 44.Sh OPTIONS 45.Bl -tag -width indent 46.It Fl l Ar load_avg 47Specify a limiting load factor, over which batch jobs should 48not be run, instead of the compiled in default of 1.5. 49.It Fl d 50Debug; print error messages to standard error instead of using 51.Xr syslog 3 . 52.El 53.Sh WARNINGS 54For 55.Nm 56to work, you have to start up a 57.Xr cron 8 58daemon. 59.Sh FILES 60.Bl -tag -width /etc/pam.d/atrun -compact 61.It Pa /etc/pam.d/atrun 62.Xr pam.conf 5 63configuration file for 64.Nm 65.It Pa /var/at/jobs 66Directory containing job files 67.It Pa /var/at/spool 68Directory containing output spool files 69.El 70.Sh SEE ALSO 71.Xr at 1 , 72.Xr crontab 1 , 73.Xr pam 3 , 74.Xr syslog 3 , 75.Xr crontab 5 , 76.Xr pam.conf 5 , 77.Xr cron 8 78.Sh BUGS 79The functionality of 80.Nm 81should be merged into 82.Xr cron 8 . 83