Re: Fwd: variable scope bug in while loop when using pipe

[Seb <sbb@xxxxxxxxxxxxx>]

Hello,

It's not a bug, both are POSIX, placing a pipe member in the current
environment instead of in a subshell being an extension:

 Command substitution, commands that are grouped with parentheses, and
 asynchronous lists shall be executed in a subshell environment.
 Additionally, each command of a multi-command pipeline is in a
 subshell environment; as an extension, however, any or all commands
 in a pipeline may be executed in the current environment.

 http://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#tag_18_12

++
Seb.
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