File::Spec->catdir(dirspecs)

Concatenates a list of directories and returns the result as a VMS-syntax directory specification.

File::Spec->catfile(filespecs)

Concatenates a list of file specifications and returns the result as a path.

File::Spec->curdir

Returns string representing the current directory.

File::Spec->file_name_is_absolute(path)

Takes a path as argument and returns true if it is an absolute path. Checks for VMS directory specification as well as Unix separators.

File::Spec->path

Translates the logical name DCL$PATH as a searchlist.

File::Spec->rootdir

Returns string representing the root directory.

File::Spec->updir

Returns string representing the parent directory.