Find out if a file path is a symbolic link, and if so what it is
linked to, via the system call readlink.
Symbolic links are a POSIX concept, not implemented on Windows but for most filesystems on Unix-alikes.
Sys.readlink(paths)character vector of file paths. Tilde expansion is done:
see path.expand.
A character vector of the same length as paths. The
entries are the path of the file linked to, "" if the path is
not a symbolic link, and NA if there is an error (e.g., the
path does not exist).
On platforms without the readlink system call, all elements are
"".
file.symlink for the creation of symbolic links (and
their Windows analogues), file.info