2 # Copyright (C) 2016 Ian Kelling
4 # Licensed under the Apache License, Version 2.0 (the "License");
5 # you may not use this file except in compliance with the License.
6 # You may obtain a copy of the License at
8 # http://www.apache.org/licenses/LICENSE-2.0
10 # Unless required by applicable law or agreed to in writing, software
11 # distributed under the License is distributed on an "AS IS" BASIS,
12 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 # See the License for the specific language governing permissions and
14 # limitations under the License.
17 local help="Usage: appendu [-h|--help] FILE [LINE]
18 Append LINE if it's not already in FILE
20 If no LINE is specified, process each line from STDIN.
21 teeu is short for tee unique.
23 -h|--help display this message"
25 if [[ $1 == --help ||
$1 == -h ]]; then
30 if (( ${#@} == 0 )) ; then
31 echo "teeu error: need 1 or more arguments"
36 (( ${#@} >= 2 )) && MAPFILE
="${@:2}" || mapfile
-t
37 for line
in "${MAPFILE[@]}"; do
38 grep -xFq "$line" "$1" &>/dev
/null ||
tee -a "$1" <<<"$line"