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Re: #!/bin/sh and #!/bin/bash is not the same


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.

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