On May 9, 6:50pm, kre%munnari.OZ.AU@localhost (Robert Elz) wrote:
-- Subject: Re: pkg/36257 (games/wesnoth has msgfmt problems (plurals) [NetBS
| Aside from cases where you can rewrite things to simplify and avoid
| a logical operator completely, the only reason to avoid -a and -o
| (using && and || instead) is to avoid strangeness in implementations of
| test. If you were confident that test whatever -a whatever_else
| would have the same effect (always) as test whatever && test whatever_else
| then using the former would always be better - even where test is built
| into the shell, it means less work, and also allows test to cache stat
| results (in expressions like "test -b x -o -c x").
You can always use parentheses:
test \( -b x \) -o \( -c x \)
I always use parentheses with -a and -o and have not encountered
a test implementation that does not work properly.
christos