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Date: Thu, 23 Feb 2017 20:38:08 +0300
From: Andrey Repin <anrdaemon AT yandex DOT ru>
Reply-To: cygwin AT cygwin DOT com
Message-ID: <1835159156.20170223203808@yandex.ru>
To: Steven Penny <svnpenn AT gmail DOT com>, cygwin AT cygwin DOT com
Subject: Re: [ANNOUNCEMENT] Updated: dash-0.5.9.1-1
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Greetings, Steven Penny!

> On Fri, 17 Feb 2017 07:50:34, "Eric Blake (cygwin)" wrote:
>> For now, there are no immediate plans of replacing /bin/sh
>> with dash, but the possibility remains for the future.

> I am a fan of this.

$ 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


> Debian does this already, and it would dramatically speed up
> shell scripts:

>     $ cat alfa.sh
>     x=400000
>     until [ "$((x -= 1))" = 0 ]
>     do :
>     done

>     $ time bash alfa.sh
>     real    0m5.735s

>     $ time dash alfa.sh
>     real    0m1.112s

> Dash can handle large scripts; I am already using it with one (545 SLOC):

> http://github.com/svnpenn/sage/blob/master/sage


-- 
With best regards,
Andrey Repin
Thursday, February 23, 2017 20:36:35

Sorry for my terrible english...


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