I tried building bash from the source package, and then it uses either /dev/fd (if I have that as a symlink) or /proc/self/fd (if I don't), rather than the fifo that the binary package uses. So perhaps whoever built the binary package didn't have /proc/self/fd for whatever reason?
With my built bash.exe, process substitution seems to work for input: $ echo <(ls) /proc/self/fd/63 $ cat <(echo hi) hi But not for output: $ tar -cf >(cat) syntax.c tar: /proc/self/fd/63: Cannot open: Permission denied tar: Error is not recoverable: exiting now I'm not sure how there can be a permissions problem or what to do about it if there really is one, given that as I understand it the /proc/self/fd/63 is effectively a symlink to one end of something returned from pipe(2). Lev -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
