+.IP \fB-users\ \fRor\ \fB-u\fR:
+Only display list members that are users (not lists or strings). If
+none of \fB-users, -lists, -strings, \fRor \fB-kerberos\fR is specified, then all
+of them will be displayed.
+.IP \fB-lists\ \fRor\ \fB-l\fR:
+Only display list members that are lists (not users or strings). If
+none of \fB-users, -lists, -strings, \fRor \fB-kerberos\fR is specified, then all
+of them will be displayed.
+.IP \fB-strings\ \fRor\ \fB-s\fR:
+Only display list members that are strings (not users or lists). If
+none of \fB-users, -lists, -strings, \fRor \fB-kerberos\fR is specified, then all
+of them will be displayed.
+.IP \fB-kerberos\ \fRor\ \fB-k\fR:
+Only display list members that are Kerberos principals (not users,
+lists, or strings). If
+none of \fB-users, -lists, -strings, \fRor \fB-kerberos\fR is
+specified, then all of them will be displayed.