if ! id $FESS_USER > /dev/null 2>&1 ; then
            echo -n "Creating $FESS_USER user..."
            adduser --quiet \
                    --system \
                    --no-create-home \
                    --ingroup "$FESS_GROUP" \
                    --disabled-password \
                    --shell /bin/false \
                    --home "$FESS_USER_HOME"  \
                    "$FESS_USER"
            echo " OK"
        fi