Unless OS X implements a different cp and mv than the standard FreeBSD ones, … It does (though it didn't before 10.4). There's still lots of code out there tha

Unless OS X implements a different cp and mv than the standard FreeBSD ones, … It does (though it didn't before 10.4). There's still lots of code out there that doesn't respect them, no doubt, but to my knowledge you can use the built-ins without worrying about losing your resource forks.