+If
+.Ev MANPATH
+begins with a colon, it is appended to the default list;
+if it ends with a colon, it is prepended to the default list;
+or if it contains two adjacent colons,
+the standard search path is inserted between the colons.
+If none of these conditions are met, it overrides the
+standard search path.
+.El
+.Sh FILES
+.Bl -tag -width "/etc/man.conf" -compact
+.It Pa mandoc.db
+name of the
+.Xr mandocdb 8
+keyword database
+.It Pa /etc/man.conf
+default
+.Xr man 1
+configuration file