From: Phil Cowans <phil@...>
Date: 2008-09-11T05:50:45+09:00
Subject: Re: commandline options and output-"method"

Skave Rat wrote:
> I've got two questions:
>
> Is it possible to run a ruby script with options? i.e.:
> foobar.rb --someoption
> foobar.rb -o
>   
Yes - they appear in the ARGV array, and can be parsed with one of a 
number of tools, eg OptionParser which is in the standard library.

> secondly,
> (how) is it possible to change the output of a script to a static
> output, so you only update a part of it? Like the progressbar of wget,
> for example.
>   

You need to output ANSI terminal control characters, which you probably 
also want to do through a library - ProgressBar is a simple tool if you 
actually want a progress bar, otherwise you might like to look at the 
Ruby ncurses bindings for more advanced applications.

Phil