[SwellJoe]

I love projects like this. They so elegantly show what using the right tool for the job can do for you, in terms of code simplicity and conciseness. Doing this in, say, Perl or Python or Ruby, would be entirely possible, and folks who code exclusively in those languages might assume it would be easier in a "more powerful" language...but Bash has so many nice little built-ins that make it really concise and portable. One file, no modules, and it does exactly what it's supposed to do.

I think it's illustrative that the developer went through a Python-based version on the path to building z.