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Re: different behaviour of bash and sh
- To: <cygwin at cygwin dot com>
- Subject: Re: different behaviour of bash and sh
- From: Andrej Borsenkow <Andrej dot Borsenkow at mow dot siemens dot ru>
- Date: Fri, 9 Mar 2001 17:35:49 +0300 (MSK)
- cc: Ralf Fassel <ralf at akutech dot de>, <bug-bash at gnu dot org>
On Fri, 9 Mar 2001, Earnie Boyd wrote:
> In the Cygwin release
>
> sh != bash
> sh == ash
>
So what? The question is, if the exibited behaviour of *sh* is correct;
the question was not "if sh is bash".
IMHO that is a bug in sh (or ash if you insist). The 'echo $?' is the next
command executed after 'false' - so , there is nothing that can change the
value of '$?' in between.
-andrej
> Earnie.
>
> Ralf Fassel wrote:
> >
> > Configuration Information [Automatically generated, do not change]:
> > Machine: i686
> > OS: cygwin
> > Compiler: gcc
> > Compilation CFLAGS: -DPROGRAM='bash.exe' -DCONF_HOSTTYPE='i686' -DCONF_OSTYPE='cygwin' -DCONF_MACHTYPE='i686-pc-cygwin' -DCONF_VENDOR='pc' -DSHELL -DHAVE_CONFIG_H -I. -I../src -I../src/include -I../src/lib -I/src/bash/distro/usr/include -g -O2
> > uname output: CYGWIN_NT-4.0 MARS 1.1.8(0.34/3/2) 2001-01-31 10:08 i686 unknown
> > Machine Type: i686-pc-cygwin
> >
> > Bash Version: 2.04
> > Patch Level: 7
> > Release Status: release
> >
> > Description:
> > The following script behaves differently in bash and sh:
> >
> > % cat script
> > #!/bin/sh --
> > checkstat() {
> > echo $?
> > }
> > false
> > checkstat
> > # End of file
> >
> > Repeat-By:
> >
> > $ type bash
> > bash is /usr/bin/bash
> > $ bash script
> > 1
> > $ type sh
> > sh is /usr/bin/sh
> > $ sh script
> > 0
> >
> > The 0 is wrong IMHO, it should be 1. (Even HP with their BD-/bin/sh
> > returns 1).
> >
> > R'
> >
> > --
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