#!/bin/bash # Klimbim Software collection, A bag full of things # Copyright (C) 2011-2023 Johannes 'Banana' Keßler # # This program is free software: you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation, either version 3 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License # along with this program. If not, see . # 2019 https://www.bananas-playground.net # Simple example how to detect if a command is available # otherwise print message and exit # In this example we need curl to be iinstalled. # If not print message and exit. command -v curl >/dev/null 2>&1 || { echo >&2 "I require curl (https://curl.haxx.se/) but it's not installed. Aborting."; exit 1; }