#!/bin/bash

echo "$@"|grep -- "--version" &>/dev/null
is_dash_version=$?

echo "$@"|grep "version" &>/dev/null
is_version=$?

if [ $is_dash_version -eq "0" ]; then
    echo "1.0"
elif [ $is_version -eq "0" ]; then
    echo "Version: 1.1"
else
    echo "Version: 1.2"
fi