On 15 February 2016 at 01:05, arisawa wrote: > for example, assume we want to exclude all files of name that begins with > “.”, > then it is probably difficult to do so using only nsfile. > Yes, although that convention isn't in Plan 9, and it might be worthwhile reconsidering how and why it is used. If for configuration files, perhaps they should be stored elsewhere; if for access control (eg, .htaccess), perhaps groups would be better, with dynamic group membership providing the effect of an access control list.