mwooding@thecity.sfsu.edu (Miguel Wooding SF Ten.Union) writes: > > It doesn't work under ash either. Just another data point. Perhaps > it's time to look at the POSIX spec. Browsing through the spec (at http://www.opengroup.org/onlinepubs/007908799/xcu/chap2.html#tag_001_006 as Greg Stark noted) I don't see any ?( ... | ... ) expansion. Maybe I just missed it, but at a glance this doesn't appear to be POSIX. --Miguel