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Date:      Thu, 3 Sep 2009 13:36:37 +0200
From:      Ruben de Groot <mail25@bzerk.org>
To:        Polytropon <freebsd@edvax.de>
Cc:        jerry M <jerrry94087@yahoo.com>, freebsd-questions@freebsd.org
Subject:   Re: Why /bin/sh doesn't like the line: if test "x$my_var" == "xyes"; then
Message-ID:  <20090903113637.GA78802@ei.bzerk.org>
In-Reply-To: <20090903065938.9196791c.freebsd@edvax.de>
References:  <423199.64505.qm@web110716.mail.gq1.yahoo.com> <20090903065938.9196791c.freebsd@edvax.de>

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On Thu, Sep 03, 2009 at 06:59:38AM +0200, Polytropon typed:
> 
> > What
> > is the version of /bin/sh currently used in 7.2? Where is it taken
> > from? --version, -v, -version don't ever print version I guess due to
> > FreeBSD policy of not versioning individual utilities.
> 
> FreeBSD's Bourne shell does not have GNU long options such
> as --version. According to the shell's manpage, -v is used
> for verbosity, and -version isn't even defined. Refer to
> "man sh" for more options.
> 
> The parts of the base system (as in opposite to Linux where no
> real "the OS" does exist) usually have the version of the
> release, but to be more precise, the individual version can be
> obtained from the source code. It can be found in /usr/src/bin/sh.
> For example, I have
> 
> 	@(#)main.c      8.6 (Berkeley) 5/28/95
> 	$FreeBSD: src/bin/sh/main.c,v 1.29 2006/10/07 16:51:16 stefanf Exp $
> 
> in the source file main.c, and the Makefile indicates
> 
> 	@(#)Makefile    8.4 (Berkeley) 5/5/95
> 	$FreeBSD: src/bin/sh/Makefile,v 1.46 2006/04/17 17:55:11 schweikh Exp $
> 
> as its particular version number and date.

Also, versions of all individual source files are usually displayed by ident(1):

nih# ident /bin/sh
/bin/sh:
     $FreeBSD: src/lib/csu/i386-elf/crti.S,v 1.7.20.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/lib/csu/i386-elf/crtn.S,v 1.6.20.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/lib/csu/common/crtbrand.c,v 1.4.20.1.6.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/lib/csu/i386-elf/crt1.c,v 1.15.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/alias.c,v 1.20.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/arith.y,v 1.21.2.1.4.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/arith_lex.l,v 1.24.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/cd.c,v 1.35.2.1.4.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/bltin/echo.c,v 1.14.28.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/error.c,v 1.26.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/eval.c,v 1.54.2.1.4.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/exec.c,v 1.31.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/expand.c,v 1.51.2.2.4.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/histedit.c,v 1.29.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/input.c,v 1.23.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/jobs.c,v 1.72.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/mail.c,v 1.14.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/main.c,v 1.29.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/memalloc.c,v 1.27.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/miscbltin.c,v 1.35.2.1.2.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/mystring.c,v 1.13.28.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/options.c,v 1.25.2.2.4.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/output.c,v 1.20.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/parser.c,v 1.58.2.1.4.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/redir.c,v 1.26.28.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/show.c,v 1.23.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/test/test.c,v 1.53.20.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/trap.c,v 1.32.8.1 2009/04/15 03:14:26 kensmith Exp $
     $FreeBSD: src/bin/sh/var.c,v 1.37.8.1 2009/04/15 03:14:26 kensmith Exp $

Ruben




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