Rafael Fernandez wrote:
> Thanks, I wasn't aware that positional parameters greater than nine have to
> be enclosed in brackets.
No prob. The manpage says
When a positional parameter consisting of more than a single
digit is expanded, it must be enclosed in braces (see
EXPANSION below).
If you have an idea for making this clearer (maybe somewhere in the
info documentation) I imagine it would be welcome.
For the future, the sh specification at
http://www.unix.org/2008edition/ (free registration required) is also
very useful for tracking down how a shell might understand a script.
