Some great tips on building a command line application in Ruby:
1. Add a shebang line to your script
Rather than hard-coding the path to the Ruby executable in your script, use `env` to figure it out from your environment. E.g.
This makes your script easier to move between servers where the Ruby binary may be in different locations.
2. Make your script executable
chmod +x path/to/your/script
3. Add the path to your lookup path so that it can be called directly
On a Mac you’d do this in your bash_profile.