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, Section 20.1 (File System Concepts), Section 19.1.2 (Pathnames as Filenames)