From: Joshua Schairbaum <joshua.schairbaum@...>
Date: 2008-01-04T04:58:45+09:00
Subject: Re: Help Please!

You don't use irb for that.  At the command prompt, that's the ruby  
command you give it.
$F = is an environmental variable that can receive split line input  
as an array

a = autosplit mode, basically takes the input and splits it out
n = pauses the command, like assuming a "while" command
e = the command

regards,
ch0wda
On Jan 3, 2008, at 2:46 PM, 1up gfx wrote:

> On Jan 3, 2008 10:53 AM, Joel VanderWerf <vjoel@path.berkeley.edu>  
> wrote:
>
>> Wes Bailey wrote:
>>> ~> ruby -e 'ARGF.each { |l| puts l.split.reverse.join( " " ) }'
>>> this is my sentence
>>> sentence my is this
>>
>> Golfing away...
>>
>> $ ruby -ane 'puts $F.reverse.join(" ")'
>> 1 2 3
>> 3 2 1
>>
>> --
>>       vjoel : Joel VanderWerf : path berkeley edu : 510 665 3407
>>
>> It doesn't like your code...  I keep on getting errors:
>
> irb(main):001:0> puts $F.reverse.join(" ")
> NoMethodError: undefined method `reverse' for nil:NilClass
>     from (irb):1
> irb(main):002:0>