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Utility functions for operating on single files.
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f |r$t j | | || |dfS ) a Copy a file 'src' to 'dst'. If 'dst' is a directory, then 'src' is
copied there with the same name; otherwise, it must be a filename. (If
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is true (the default), the file's mode (type and permission bits, or
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last-access times are copied as well. If 'update' is true, 'src' will
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don't support it: 'copy_file()' doesn't check if hard or symbolic
linking is available. If hardlink fails, falls back to
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Under Mac OS, uses the native file copy function in macostools; on
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Return a tuple (dest_name, copied): 'dest_name' is the actual name of
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d} ~ ww xY w|S )a% Move a file 'src' to 'dst'. If 'dst' is a directory, the file will
be moved into it with the same name; otherwise, 'src' is just renamed
to 'dst'. Return the new full name of the file.
Handles cross-device moves on Unix using 'copy_file()'. What about
other systems???
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