From: Joel VanderWerf <vjoel@...>
Date: 2005-07-29T01:25:52+09:00
Subject: Re: Sed -> Ruby : .. and ...

Keith Fahlgren wrote:
> sed:
> s/MATCH/GLOBAL REPLACEMENT/g
> 
> ruby:

$ cat test
foo
bar
123
$ ruby -p -e 'gsub(/bar/, "BAR")' test
foo
BAR
123

Also, you can use the ARGF constant to access all of the input files (or
stdin if there are none) as a single IO.

ARGF.each do |line|
  ...
end