In article <45F1D674.9080306@berklee.edu>,
Louis Guillaume  <lguillaume@berklee.edu> wrote:
>Hi,
>
>I'm trying to figure out a shell problem so that the script is portable.
>
>bash and pdksh seem to behave the same, but I think they're wrong. They
>seem to run the `while' segment of the pipeline in a subshell. Or something.
>
>ksh88 does the right thing.
>
>Is there some good reason for bash's and pdksh's misbehaviour??
>
>Louis

According to the standards the shell is allowed to execute the loop
in a subshell. Dependiing on it to be executed in the same shell is
non-portable.

christos