mv does copy instead of rename

[Richard Foulk <richard at skydive1 dot com>]

In an Active Directory environment Windows Explorer was refusing to
rename a directory, presumably because the directory was open by
another process.

On trying mv under Cygwin to rename the directory, mv seemed to just
hang.  It was a large directory and mv was actually copying the files
to the new named directory (on the same partition.)

Does this seem like appropriate behaviour?  It was certainly unexpected.

I'm pretty sure mv is never supposed to do this on Unix.


Richard

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