Re: fds above 9 and internal fds

[Chet Ramey]

Stephane Chazelas wrote:

> Maybe there should be reserved fds for bash internal use or only
> allow fds 0 to 9 on the LHS of redirections as in other
> Bourne-like shells. Or maybe document that it's dangerous (and
> not portable) to use fds above 9. Another way would be to save
> all the internally used fds when they are used by the user.

Thanks for the report.  I added a heuristic that should make it
less of a problem, and a cautionary note to the man page.

Chet