From: Joel VanderWerf <vjoel@...>
Date: 2002-07-07T17:27:38+09:00
Subject: Re: unshifting a directory onto ENV['PATH']

Ned Konz wrote:

> Unfortunately, this doesn't work for some reason...
> 
> ENV['PATH'][0,0] = 'mystuff:'

ENV['PATH'].id == ENV['PATH'].id    # ==> false

Looks like ENV's [] method returns a copy of the string. The only way to 
change ENV's data is to use []=. ENV isn't a real hash, just an 
interface to the enviroment vars.