File.ln_s

You're seeing just the function ln_s, go back to File module for more information.

ln_s(existing, new)

(since 1.5.0)

ln_s(Path.t(), Path.t()) :: :ok | {:error, posix()}

Creates a symbolic link new to the file or directory existing.

Returns :ok if successful, {:error, reason} otherwise. If the operating system does not support symlinks, returns {:error, :enotsup}.