“The Unix way,” is not limited to shell facilities. The best tool for many automated tasks (and many a problem posed on PM) is make.

Makefile rules may instruct intermediary files to be kept; in this case, the independent results could be catenated together as the final step. GNU make has the -j option to specify the number of parallel jobs.

In reply to Re: POE Examples by Anonymous Monk
in thread POE Examples by kulls

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