file-author pathspec => author
pathspec—a pathname designator.
author—a string or nil.
Returns a string naming the author of the file specified by pathspec, or nil if the author's name cannot be determined.
(with-open-file (stream ">relativity>general.text")
(file-author s))
=> "albert"
The host computer's file system.
Other users of the file named by pathspec.
An error of type file-error is signaled if pathspec is wild.
An error of type file-error is signaled if the file system cannot perform the requested operation.
pathname, logical-pathname, File System Concepts,