> There shouldn't be a difference, I did quite a bit of Googling just to > be sure. For example, the Dash shell seems to be used often as > POSIX-compliance reference implementation. From
POSIX mandates $() so any posix shell will support it. The issue is
with non-POSIX shells, if you do want to support them (e.g. Solaris's
/bin/sh).
Stefan
