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Gets the string of the parent specified by this pathname. This is basically, by default the string before the last path separator of the absolute pathname.
# S3 method for default
getParent(pathname, depth=1L, fsep=.Platform$file.sep, ...)A character string of the pathname to be checked.
An integer specifying how many generations up the
path should go.
A character string of the file separator.
Not used.
Returns a character string if the parent exists, otherwise NULL.