Re: [BUG] builtin read from pipe (echo foo | read) does not affect the result variable

[Paul Jarc]

"Eddy Razanajatovo" <e.razanajatovo@x-media.fr> wrote:
> Caveats:
> The workaround requires filespace space in a temporary directory, and
> commands do not perform concurrently, as in the following example:
>
> #!/bin/bash
> (
>     perform_something_that_generates_a_big_file_on_stdout
> ) | (
>     while read
>     do
>         manage_a_result_line $REPLY
>     done
> )

This does not require any temporary space in the filesystem.  In this
specific case, the parentheses are unnecessary as well.

> Note that this affects bash even if it is invoked in Bourne-Shell mode using
> "sh" or "/bin/sh" instead of "bash".
> So the above example must be rewritten as:

No rewriting is necessary; the above will work.


paul