1Cwd provides functions for determining the pathname of the current working 2directory. It is recommended that getcwd (or another *cwd() function) be used in 3all code to ensure portability. By default, it exports the functions cwd(), 4getcwd(), fastcwd(), and fastgetcwd() (and, on Win32, getdcwd()) into the 5caller's namespace. 6 7File::Spec is designed to support operations commonly performed on file 8specifications (usually called "file names", but not to be confused with the 9contents of a file, or Perl's file handles), such as concatenating several 10directory and file names into a single path, or determining whether a path is 11rooted. 12