update environment asynchonously in background

[leflamm]

[stweise]

how about using at and storing the results temporarily in specifically named /tmp/afpre-(dateformat) or /var/run/afpre-(dateformat) ?

atq would also provide an efficient way of checking, atrm for deletion. reference/example: https://www.ibm.com/developerworks/opensource/library/l-job-scheduling/index.html