Hi Discipulus! Thanks for your reply. My understanding is that Cwd::abs_path() uses the current directory, but that directory may not be equal to the initial current directory (for example if the user has called chdir). Regarding Module::Path, yes it could work.. but not all perl files are modules, for example the main script ./test/test.pl. Also I think there is no reason to cycle all the @INC directories for the given module, when it always (if the path is relative) will be under (that is, relative to) the initial current directory.