Oğuz <oguzismailuy...@gmail.com> writes:
> $ set -o posix
> $ uname &>/dev/null
> $
>
> `uname &' and `>/dev/null' should be parsed as two separate commands;
> that, if I'm not missing anything, is what POSIX says. But bash
> doesn't do that in POSIX mode, and redirects both stderr and stdout to
> `/dev/null'.
An interesting point! At least according to the 2018 edition, a Posix
shell parses that command as
uname
&
>
/dev/null
which is two commands, "uname &" and ">/dev/null". The second command
is a no-op. Whereas default mode Bash parses it as uname with a
redirection.
This may be the only situation where Posix mode differs from default
mode in *lexing*. And at least in my antique version, the --posix
switch doesn't make that change.
Dale
