+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+teeu() {
+ local help="Usage: appendu [-h|--help] FILE [LINE]
+Append LINE if it's not already in FILE
+
+If no LINE is specified, process each line from STDIN.
+teeu is short for tee unique.
+
+-h|--help display this message"