Unable to properly execute a let statement from a shell script

Paolo Gesmundo paolo.gesmundo@tiscali.it
Mon Jan 31 12:35:00 GMT 2005


Thanks for the responses.

So, in cygwin for Win XP, is it possible to set my environment in such a way 
that the default shell
is bash?

Thanks
Paolo

----- Original Message ----- 
From: "Brian Dessent" <brian@dessent.net>
To: <cygwin@cygwin.com>
Sent: Monday, January 31, 2005 9:38 AM
Subject: Re: Unable to properly execute a let statement from a shell script


> Paolo Gesmundo wrote:
>
>> I know that I could modify a.sh by adding #!/bin/bash
>> at the top of the file but I would need to avoid this
>> otherwise I have to modify too many scripts
>>
>> Is there a way to run a.sh like in Case 1 and get the
>> proper result like in Case 2?
>
> It sounds like your scripts are banking on the assumption that under
> linux, sh=bash, whereas on Cygwin sh=ash.  So, you can't get away with
> using bash-isms in scripts without shebangs because you are relying on a
> specific quirk of linux.  If you require bash-specific features you need
> to either call bash explicitly in the shebang or exec the script from
> bash.  Otherwise your script is not going to be portable on any system
> other than linux.  bash != sh.
>
> Brian
>
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