[ILUG] Bourne shell question

[Braun Brelin]

Hello all,

A quick question, does anyone know how the Bourne shell allowed scripts
to override boolean logic operator precedence?

i.e.

if I have a statement that looks like:

test $a  -eq 5 -o $b -eq 10 -a $c -eq 5

and I want the shell to evaluate (a or b) and c rather than the default
a or (b and c), did the original Bourne shell allow this?

Braun