.\" $FreeBSD: src/libexec/atrun/atrun.man,v 1.12 2004/07/02 19:07:31 ru Exp $ .Dd April 12, 1995 .Dt ATRUN 8 .Os .Sh NAME .Nm atrun .Nd run jobs queued for later execution .Sh SYNOPSIS .Nm atrun .Op Fl l Ar load_avg .Op Fl d .Sh DESCRIPTION .Nm Atrun runs jobs queued by .Xr at 1 . .Pp Root's .Xr crontab 5 file .Pa /etc/crontab has to contain the line .Bd -literal */5 * * * * root /usr/libexec/atrun .Ed .Pp so that .Nm gets invoked every five minutes. .Pp At every invocation, .Nm will start 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. .Sh OPTIONS .Bl -tag -width indent .It Fl l Ar load_avg Specify a limiting load factor, over which batch jobs should not be run, instead of the compiled in default of 1.5. .It Fl d Debug; print error messages to standard error instead of using .Xr syslog 3 . .El .Sh WARNINGS For .Nm to work, you have to start up a .Xr cron 8 daemon. .Sh FILES .Bl -tag -width /var/at/spool -compact .It Pa /var/at/spool Directory containing output spool files .It Pa /var/at/jobs Directory containing job files .El .Sh SEE ALSO .Xr at 1 , .Xr crontab 1 , .Xr syslog 3 , .Xr crontab 5 , .Xr cron 8 .Sh BUGS The functionality of .Nm should be merged into .Xr cron 8 .