Subject: Re: Re: [ast-developers] New syntax for paths relative to directory 
fds  (~{dirfd}/foo/bar.txt) ...

> My only concern is that redirect {f}<>file never allowed plain numbers
> as f, i.e. redirect {512}<>file. IMO you should remove that, or add
> support that redirect {512}<>file works (I doubt David Korn is going
> to like that and I am not going to like it either).

The point of {f}<>file is that the file number will be picked by the
shell.  Otherwise, you might step on some internal file causes it to
be replaced.  3-9 are reserved for the application and not used

David Korn
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