On Mon, 19 May 2008 21:46:03 +1200 Jonathan Chen <[EMAIL PROTECTED]> wrote:
> On Mon, May 19, 2008 at 01:49:35AM -0700, Garrett Cooper wrote: > > Riddle for the day for folks that have source trees... what would > > you expect this to print out (ask yourself the question and then > > execute the command)? > > > > find /usr/src -name Makefile -or -name '*.mk' -print > > > > The expected output and what actual output differed in my mind, but > > maybe somebody else can "shed some light" on the logic behind what > > happened > > It's a problem that catches many young players with find(1). One has > to remember from reading the man-page that all directives have an > implicit AND operator on it; and that includes the "-print" directive. > So to get what you want, you have to introduce brackets: > > find /usr/src \( -name Makefile -or -name '*.mk' \) -print > Why does that make a difference, when print always evaluates to true? x AND true = x so (a OR b) AND true = a OR b a OR (b AND true) = a OR b _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[EMAIL PROTECTED]"
