Re: <> redirection and notations

[Paul Haahr <haahr@mv.us.adobe.com>]

> It doesn't.  The version of bash that Arnold has opens it O_RDWR; I
> just changed that yesterday to O_RDWR|O_CREAT.
> 

> Some experimentation with `strace' and ksh shows that ksh also opens the
> file O_RDWR|O_CREAT.

but /bin/sh on all machines i've tried here require that the file exist,  
therefore do not use O_CREAT.  this is consistent with them being Bourne  
shells and predating the existence of the O_CREAT flag.

anyway, i assume that there's consensus here that <> use O_RDWR|O_CREAT.   
it does seem to make the most sense.  i'll update es to add O_CREAT.

paul