Date: Tue, 2 Jul 1996 13:25:15 -0400 (EDT) From: Rashid Karimov <rashid@rk.ios.com> To: mike@networx.ie Cc: questions@freebsd.org Subject: Re: Bug in /bin/sh Message-ID: <199607021725.NAA12316@rk.ios.com> In-Reply-To: <ECS9607021715A@networx.ie> from "Michael Ryan" at Jul 2, 96 05:20:15 pm
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it is well known that classic "sh" is buggy.
It fails for example on some complex "configure"
scripts ... can't recall the name of the product,
I think it's something from GNU project.
Use bash instead.
Rashid.
> Can anybody confirm that there is a bug in /bin/sh in FreeBSD v2.1,
> which the following commands illustrate...
>
> ------------------------------------------
> $ cat > shbug
> #! /bin/sh --
> f () {
> echo start
> test $1 = abc && {
> echo middle
> return 1
> }
> there is no command called "there" &
> echo end
> return 0
> }
> f $1
> exit 0
> ^D
> $ chmod +x shbug
> $ shbug abc
> start
> end
> $ middle
> ------------------------------------------
>
> Note how the "echo end" statement got executed, eventhough it
> should not have? Also, it doesn't complain about the command
> "there" not being found.
>
> It's the "&" at the end of the "there" command that seems to
> confuse the shell. Remove it and the script works as you'd
> expect.
>
> Please email any replies to me directly (as well as to the
> list if you like), as I'm not on the mailing list right now.
>
>
> Thanks,
> Mike
> <mike@NetworX.ie>
> ---
>
>
>
>
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