Date: Thu, 24 Feb 2011 13:02:22 -0800 From: Rob Farmer <rfarmer@predatorlabs.net> To: Thorsten Glaser <tg@mirbsd.org> Cc: freebsd-questions@freebsd.org Subject: Re: Backtick versus $() Message-ID: <AANLkTik88V5Bb2BWM0Kpv3rWfek9_%2BgjqmEt6UbsVjpS@mail.gmail.com> In-Reply-To: <loom.20110224T214917-136@post.gmane.org> References: <alpine.BSF.2.00.1102201027170.56885@wonkity.com> <4D61599E.4040008@gmail.com> <AANLkTinJKcy8NyFzW9=6yKEY%2BF_payQVM108_=B7Gyjr@mail.gmail.com> <loom.20110224T210222-768@post.gmane.org> <AANLkTinQ4MMwWq77k1t-SwqE%2BzPep6VCNS9AKdT_H08b@mail.gmail.com> <loom.20110224T214917-136@post.gmane.org>
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On Thu, Feb 24, 2011 at 12:51 PM, Thorsten Glaser <tg@mirbsd.org> wrote: > Andres Perera <andres.p <at> zoho.com> writes: > >> "mandated by posix" and reality usually aren't in sync, as i'm sure you = know > by > > In this case, closely enough. > >> now since you pointed out solaris > > It=92s just /bin/sh on long outdated versions (newer ones, both > from Horracle and not, have AT&T ksh93 there instead). No need > to use it, anyway. sh scripts can usually depend on a POSIX > shell (and it=92s sensible to do so). Some operating environments > have guaranteed that (MirBSD even guarantees mksh but Debian > Policy =A710.4 explicitly states POSIX plus a few extensions). > > And AFAIK all FreeBSD=AE shells have it. Have you used the default FreeBSD shell (tcsh) recently? [rfarmer@sapphire] ~> echo $(date ) Illegal variable name. [rfarmer@sapphire] ~> echo `date` Thu Feb 24 12:59:00 PST 2011 [rfarmer@sapphire] ~> uname -a FreeBSD sapphire.predatorlabs.net 9.0-CURRENT FreeBSD 9.0-CURRENT #0 r218838: Sat Feb 19 03:39:34 PST 2011 rfarmer@sapphire.predatorlabs.net:/usr/obj/usr/src/sys/SAPPHIRE amd64 And I read the article you posted - basically it seemed to say "some keyboards are screwed up, so rather than fix them would everyone stop using this character please." I have a good feeling what the success rate of that will be. --=20 Rob Farmer
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