Re: Bash Process Substitution

[Lev S Bishop <lev dot bishop at yale dot edu>]

Corina wrote:
> In the Linux kernel there's some magic
> going on which we can't reproduce in Cygwin so far.  Trying to open
> an existing pipe for writing or reading opens apparently exactly the
> right end of the pipe under Linux.  On Windows, you only get the exact
> end of the pipe which is already available to the current process.  That's
> the read side of the pipe, AFAICS, and that doesn't allow writing.  This
> explains the "Permission denied".

Interesting. Looking in function process_substitute in subst.c, I can see 
that bash tries to swap ends of the pipe depending on whether its a >(cmd) 
or a <(cmd) substitution. 

Lev


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