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Delete matching files in two Finder folders
Authored by: sjk on Oct 09, '05 04:43:14PM

I agree with your simple analysis and explanation. Here's looking at the two main perspectives in more detail:

From Finder, crippling Undo context by not restoring files that were replaced by the copy or move is quite arguably a bug because it redefines Undo's anticipated (and intuitively intended, especially for novices) meaning and behavior. However, that does have issues like mmacho mentioned. Anyway, at least for me, Undo usually means "restore everything affected by an action to the state it was in before that action".

From a shell, traditional versions of commands like cp and mv are defined and designed to be irreversibly destructive. There are non-destructive replacements available but unless underlying syscalls are modified (e.g. like SeanAhern's shim) there are too many ways to circumvent non-destructive behavior.

And that leaves us with a mix of what's expected, what's possible, and what actually happens. :-)

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