From mboxrd@z Thu Jan 1 00:00:00 1970 From: schily@schily.net (Joerg Schilling) Date: Mon, 27 Jun 2016 17:13:43 +0200 Subject: [TUHS] Bizarre job control, was csh In-Reply-To: References: <201606261014.u5QAE1qX015184@skeeve.com> <5770032F.8030306@mhorton.net> <20160626181450.GK26734@mcvoy.com> <57710068.Y5JOWn5FNyxO2PxU%schily@schily.net> <2D2E5333-6FCF-43DA-82D9-25B0E86CB325@tuhs.org> Message-ID: <577142a7.64xQskFrCzJbQBN3%schily@schily.net> Steve Nickolas wrote: > I tried a couple times to figure out how to implement a Bourne shell, and > just couldn't figure it out. But then, I was never much of a programmer. It is hard and you cannot do it from just reading the POSIX standard. This is because the POSIX standard tries to write descriptions in an abstract notation that missleads people that did never see a working implementation before. After a few years of maintaining the Bourne Shell, I would know how to do it but I am not interested to do it from scratch. Jörg -- EMail:joerg at schily.net (home) Jörg Schilling D-13353 Berlin joerg.schilling at fokus.fraunhofer.de (work) Blog: http://schily.blogspot.com/ URL: http://cdrecord.org/private/ http://sourceforge.net/projects/schilytools/files/'