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Subject: Re: /bin/sh is not really bash? [was: git stash damaged?]
To: cygwin@cygwin.com
References: <79a57b23-6050-e3d6-3cc9-776eade485af@SystematicSw.ab.ca> <1939fb92-8d67-4861-d7c8-5f5abca68496@anyces.com>
From: =?UTF-8?Q?Hans-Bernhard_Br=c3=b6ker?= <HBBroeker@t-online.de>
Message-ID: <1aa80c9d-4da5-a6f1-4295-580a32aae5b0@t-online.de>
Date: Thu, 26 Jan 2017 20:15:06 +0100
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Am 26.01.2017 um 11:52 schrieb Olivier FAURAX:

> I found a workaround by replacing:
> #!/bin/sh
> by:
> #!/bin/bash
> in the first line of /usr/libexec/git-core/git-submodule

If that change has any effect, that leaves three main possibilities:

1) something broke or otherwise disabled your installed /bin/sh.exe, but 
left /bin/bash.exe intact.  Someone else here had some unrelated 
activity kill cygwin's bash.exe recently...

2) the git-stash script wrongly assumes bash behaves exactly the same 
when called as 'sh' and as 'bash'.  But bash enters POSIX compatibility 
mode in that case, which disables quite a number of GNU extensions.

>  This might be related to:
> https://cygwin.com/faq/faq.html#faq.using.shell-scripts

That would be case 2)  I don't think so, though.  The symptoms of that 
would be less blunt than "could not execute".

> Also, the previous link says that "/bin/sh is really bash", but:
> $ /bin/sh --version

That strongly hints you have case 1) happening here.


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