Module expansions 

Functions

canonicalize_with

Resolve all symbolic links and all components (tilde, ., .., …+) and return the path in its absolute form.

expand_path

Resolve only path components (tilde, ., .., …+), if possible.

expand_path_with

Resolve only path components (tilde, ., .., …+), if possible.

expand_to_real_path

Resolve to a path that is accepted by the system and no further - tilde is expanded, and ndot path components are expanded.

locate_in_dirs

Attempts to canonicalize the path against the current directory. Failing that, if the path is relative, it attempts all of the dirs in dirs. If that fails, it returns the original error.