Date: Thu, 31 May 2012 23:21:10 +0400 From: Alexander Pronin <scher@FreeBSD.org> To: freebsd-ports@freebsd.org, freebsd-stable@freebsd.org Cc: Marcus von Appen <mva@FreeBSD.org> Subject: [ GSOC ] Differences in shell behaviour Message-ID: <4E946838-4F3B-421A-839E-05E1A01464AB@FreeBSD.org>
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Hello everyone! I am GSOC student at FreeBSD Project. So my GSOC Project is "Parallelization in the ports collection". You may checkout wiki page of this project: http://wiki.freebsd.org/SummerOfCode2012/Parallelization_in_the_ports_collection Is it suitable to write sh script for 9.0, that does not work in 8.3? To sum up, the scenario is as following: I need to spawn some processes in background to build port's dependencies. Store their pids. Wait for a while or do some stuff. explore exit codes of spawned processes by their pids. The problem is: ### sh in 8.3 $ false & pid=$! $ [1] Done (1) false $ wait ${pid} wait: No such job: 4852 ----------------------- ### sh in releng9 $ false & pid=$! $ [1] Done(1) false $ wait ${pid} $ echo $? 1 $ I am currently working in releng9 environment, so the result suits my needs. But, is it suitable to write sh script for 9.0, that does not work in 8.3?
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