script3

#!/bin/bash
# assign variables
ACTION=${1}
version="1.0.1"

function show_version() {
echo $version
}

function delete_file() {
rm "${1}-12345"
}

function create_file() {
touch "${1}-12345"
}

function display_help() {

cat << EOF
Usage: ${0} {-v|--version|-d|--delete|-c|--create|-h|--help} <filenmae>
OPTIONS:
	-v | --version 	Show version
	-d | --delete	Delete file
	-c | --create	Create a new file
	-h | --help	Display the command help
Examples:
	Show version
		$ ${0} -v
	Delete file
		$ ${0} -d foo.txt
	Create a new file:
		$ ${0} -c foo.txt
	Display help:
		$ ${0} -h
EOF
}

case "$ACTION" in
		-h|--help)
			display_help
			;;
		-c|--create)
			create_file "${2:-server}"
			;;
		-d|--delete)
			delete_file "${2:-server}"
			;;
		-v|--version)
			show_version
			;;
		*)
		echo "Usage ${0} {-v|-d|-c|-h}"
		exit 1
esac