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Subject: Re: #!/bin/sh and #!/bin/bash is not the same
To: cygwin AT cygwin DOT com
References: <CA+7cx1oHkwK8vOV+2heYAhw=DhkrRfEvkbaj2pmH+x29ZP0T7Q AT mail DOT gmail DOT com> <fd1a102b-9df8-24b7-8440-9842b614fc6c AT gmail DOT com> <CA+7cx1p8ntAQriaYPJyBLcEu7sHPixs3sYUydx8XMZqQ20mL1g AT mail DOT gmail DOT com> <b12f15c3-121b-fea6-7dcf-a6c703434030 AT gmail DOT com> <CA+7cx1p88=wQC=HTcYp8kgX4FFn=Z86Fa5bZDceh0u4TPYx5gg AT mail DOT gmail DOT com>
From: cyg Simple <cygsimple AT gmail DOT com>
Message-ID: <fdfeefd7-50fb-d6b6-4e68-a20a221118df@gmail.com>
Date: Tue, 23 Aug 2016 13:40:14 -0400
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On 8/22/2016 3:31 PM, Morten Kjærulff wrote:
> 
> This:
> 
> date
> echo a | while read ; do
>   sleep 3 &
> done
> wait
> date
> 
> will run in 0 seconds, with BOTH /bin/sh and /bin/bash
> 
> This:
> 
> date
> while read ; do
>   sleep 3 &
> done < <(echo a)
> wait
> date
> 
> will run in 3 seconds with /bin/bash and get syntax errors with /bin/sh:
> syntax error near unexpected token `<'
> `done < <(echo a)'
> 

See
http://stackoverflow.com/questions/12120598/syntax-error-in-shell-script-with-process-substitution
for the answer to your quandary.

-- 
cyg Simple

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