#!/bin/bash . /usr/sbin/so-common usage() { read -r -d '' message <<- EOM usage: so-monitor-add [-h] NIC positional arguments: NIC The interface to add to the monitor bond (ex: eth2) optional arguments: -h, --help Show this help message and exit EOM echo "$message" exit 1 } if [[ $# -eq 0 || $# -gt 1 ]] || [[ $1 == '-h' || $1 == '--help' ]]; then usage fi add_interface_bond0 "$1"