met, be warned that unlinking a directory can inflict damage on your
filesystem. Use C<rmdir> instead.
-Note: on filesystems that support multiple versions of a file,
-such as VMS, each version counts as a separate file: on such a
-platform, C<unlink "filename"> will generally delete only the last
-version of the file. See L<perlvms/unlink LIST> for more information.
-
If LIST is omitted, uses C<$_>.
=item unpack TEMPLATE,EXPR