-#!/bin/bash
-# Copyright (C) 2014 Ian Kelling
-# This program is under GPL v. 3 or later, see <http://www.gnu.org/licenses/>
-
-teeu() {
- local help="Usage: appendu [-h|--help] FILE [LINE]
-
-Tee unique. Append each LINE or if none, each stdin line to FILE if it does not exist in FILE.
-
- [-h|--help] display this message"
-
- if [[ $1 == --help || $1 == -h ]]; then
- echo "$help"
- return
- fi
-
- if (( ${#@} == 0 )) ; then
- echo "teeu error: need 1 or more arguments"
- echo "$help"
- return 1
- fi
- local MAPFILE
- (( ${#@} >= 2 )) && MAPFILE="${@:2}" || mapfile -t
- for line in "${MAPFILE[@]}"; do
- grep -xFq "$line" "$1" &>/dev/null || tee -a "$1" <<<"$line"
- done
- return 0
-}