Ng system> (gid) A uNique Number, betweeN 0 aN 32767, ideNtifyiNg a set of users uNder UNix. Gids are fouNd iN the /etc/passwd aNd /etc/group databases (or their NIS equivaleNts) aNd oNe is also associated with each file, iNdicatiNg the group to which its group permissioNs apply. (1996-12-01)