Batch: load-based scheduling

batch (+ atrun), at
at allows you to specify when to run a job:

[root@gerd2 var]# at now +30 minutes -f /root/find_idiots3.bash

warning: commands will be executed using (in order) a) $SHELL b) login shell c) /bin/sh
job 2 at 2002-04-22 15:40

batch, however, says 'run this job when you are idle':

[root@gerd2 var]# batch -f /root/find_idiots3.bash
warning: commands will be executed using (in order) a) $SHELL b) login shell c) /bin/sh
job 3 at 2002-04-22 15:11

when will it run? When the load average drops to what you set with atrun:

atrun -l 2

above means that the process will run when load average hits 2 or less
/etc/at.allow, /etc/at.deny

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