Le 16/06/2010 19:03, Greg Wooledge a écrit :
> On Wed, Jun 16, 2010 at 07:47:03PM +0200, Krzysztof ??elechowski wrote:
>> The description of the read builtin [19] would benefit of the following note:
>> Warning: A pipeline of the form { echo 1 2 | read a b; } is not useful. Use
>> {
>> read<<<"1
On 06/17/2010 10:28 AM, Marc Herbert wrote:
- The POSIX standard does allow "echo 1 2 | read a b" to be useful
(cf. 2.12 "Shell Execution Environment"). Some alternatives to
bash actually make it useful. Standard and portability concerns
definitely belong to a reference manual.
Mayb
>> - The POSIX standard does allow "echo 1 2 | read a b" to be useful
>>(cf. 2.12 "Shell Execution Environment").
> Maybe the POSIX expect shell to execute the last command of pipeline
> not in subshell.
>From section 2.12 and from messages posted here in the past I
understand that POSIX
Marc Herbert schrieb:
From section 2.12 and from messages posted here in the past I
understand that POSIX allows either one. This ambiguity reinforces the
need for documentation IMHO.
I agree with Greg here, it's a well known "don't". What should be
documented is (maybe it is?) how pipelines
