Re: IFS handling and read

[Lhunath (Maarten B.)]

On 30 Nov 2009, at 11:34, Marc Herbert wrote:

> Eric Blake a écrit :
>> 
>> This is E4 in the FAQ:
>> ftp://ftp.cwru.edu/pub/bash/FAQ
>> 
>> POSIX permits, but does not require, that the final element of a pipeline
>> be executed in a subshell.  Bash uses the subshell, ksh does not.
>> Variable assignments in a subshell do not affect the parent.
> 
> I am regularly bitten by this. This is a major pain; it makes "read" very
> inconvenient to use (whatever IFS is).
> 
> Could this be changed in the future?

Don't use pipelines to send streams to read.  Use file redirection instead:

Instead of ''command | read var''
Use ''read var < <(command)''

I hardly see a need to change the existing implementation.