From: Matma Rex <matma.rex@...>
Date: 2013-01-11T21:22:16+09:00
Subject: Re: Ruby command Line options

On Fri, 11 Jan 2013 13:03:28 +0100, Arup Rakshit <lists@ruby-forum.com> wrote:

> Hi,
>
> Can you bit help me to understand how the below options work in real
> life?
>
> -T [level]

This one controls tainting, which is a bolted-on feature that no one ever uses as far as I know. It is supposed to help prevent security holes, but like PHP's magic_quotes isn't a real solution.


> -K [ kcode]

I think this is 1.8 only (or at least I can't find it in Ruby 1.9's `ruby -h` output). It was something encoding-related.


> -F pat
>
> -i [ ext]

These would generally be used with -e, for one-off magic one-liners. You probably won't find them in real life code either.

-- 
Matma Rex