From: "ara.t.howard" <ara.t.howard@...>
Date: 2007-07-03T15:42:58+09:00
Subject: Re: getting rid of $0


On Jul 2, 2007, at 3:03 PM, Jano Svitok wrote:

> Anyway, $0 seems to be a normal variable that you can set to anything
> you want, so creating a small wrapper script should not be a problem.
> E.g.
>
> $0 = ARGV.shift
> require $0


be careful, $0 is not a normal variable:

cfp:~ > cat a.rb
$0 = 'foobar'

puts `ps wwwaux|grep foobar`


cfp:~ > ruby a.rb
ahoward  10371   2.6 -0.1    29204   1388  p2  S+   12:41AM   0:00.01  
foobar
ahoward  10372   1.4 -0.0    27728    584  p2  S+   12:41AM   0:00.00  
sh -c ps wwwaux|grep foobar
ahoward  10374   1.2 -0.0    27368    448  p2  S+   12:41AM   0:00.00  
grep foobar


it actually assigns to c's argv


-a
--
we can deny everything, except that we have the possibility of being  
better. simply reflect on that.
h.h. the 14th dalai lama