+GROUP=root
+groups | grep root > /dev/null 2> /dev/null
+if [ "$?" != "0" ]
+then
+    groups | grep wheel > /dev/null 2> /dev/null
+    if [ "$?" != "0" ]
+    then
+        printf "Can't find neither 'root' nor 'wheel' group.\n"
+        exit -1
+    fi
+    GROUP=wheel
+fi
+
+subst "-STG-PATH-" "$STGPATH" "$STGPATH/stargazer.conf"
+subst "-STG-GROUP-" "$GROUP" "$STGPATH/stargazer.conf"