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Subject: Re: [ANNOUNCEMENT] Updated: dash-0.5.9.1-1
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To: cygwin AT cygwin DOT com
Reply-To: Brian DOT Inglis AT SystematicSw DOT ab DOT ca
From: Brian Inglis <Brian DOT Inglis AT SystematicSw DOT ab DOT ca>
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Date: Thu, 23 Feb 2017 12:59:27 -0700
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On 2017-02-23 12:46, Steven Penny wrote:
> On Thu, 23 Feb 2017 20:38:08, Andrey Repin wrote:
>> $ cat /etc/postinstall/zp_dash-as-bin-sh.dash
>> #!/bin/dash
> 
>> test ! -h /bin/sh.exe && {
>>   _f="$(mktemp /bin/sh.XXXXXX)"
>>   {
>>     mv /bin/sh.exe "$_f"
>>     ln -s /bin/dash.exe /bin/sh.exe
>>   } || mv "$_f" /bin/sh.exe
>>   rm "$_f"
>> }
>> exit 0
> 
> This is a bad idea.
> 
> If script succeeds, then yes sh is now a symlink to Dash, but only
> for my system. I still have to use #!/bin/dash with my scripts,
> because otherwise people with Bash -> sh will not get the speed
> boost. The whole point of this thread is that it should be changed
> for everyone.

And should be done using update_alternatives so it and associated 
man pages can easily be changed if anyone suffers breakage.
Some people may continue to need or prefer using bash in POSIX mode.

-- 
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada

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