On 3/20/24 14:43, Bernhard Voelker wrote: > On 3/17/24 07:10, Paul Eggert wrote: > Now, extending "exchange" to more arguments is confusing and the > use is not intuitive: > mv -v --exchange a b c d It's also pointless. An atomic exchange on more than 2 files ISN'T ATOMIC. That's why I didn't do it. You already had "mv -T" requiring exactly two arguments, so thinking mv -x has cooties because it works the same way is just weird. > I have the gut feeling that we didn't think through all cases, Sounds like. Having mv modify its source directory during recursive descent is creepy. Toybox implemented: -x Atomically exchange source/dest (--swap) Which behaves like: $ ./mv -x one two $ ./mv -x one two three mv: -x needs 2 args My change from this discussion was adding the "--swap" synonym you wanted. Rob
