A starter template for writing your own tools shell script.

my-tools.sh

#!/usr/bin/env bash

now=`date +"%m_&d_%Y"`
VER="0.0.1"
AUTHOR="Your Name"

function an_action() {
	echo "Hello World!"
}

function output_help() {
	echo
	echo "# My Script Tools"
	echo
	echo "  --output_help                    Outputs this help info"
	echo "  --version                        Outputs the current script version"
}

function output_version() {
	echo "My Tools v${VER}"
	echo "Author(s): ${AUTHOR}"
}

if [ "$1" ]; then
	case $1 in
		"--version")
			output_version
			exit 0
			;;
		"--help")
			output_help
			exit 0
			;;
		*)
			echo "Unrecognized option ${1}. please try again."
			exit 1
			;;
	esac
fi