From: Wybo Dekker <wybo@...>
Date: 2005-12-31T20:11:10+09:00
Subject: Re: Newb: Search & Replace

On Sat, 31 Dec 2005, Art Gillespie wrote:

> #!/usr/bin/env ruby
> 
> VERSION_HEX=ARGV[0]
> 
> File.open("iDrum_prefix.h.tmp", "w") do |ofile|
>   File.open("iDrum_prefix.h") do |file|
>     file.each do |line|
>       if line =~ /^#define kIDComponentVersion\t*(.*)/
>         ofile.puts line.sub($1, "#{VERSION_HEX}")
>       else
>         ofile.puts line
>       end
>     end
>   end
> end
> 
> File.rename("iDrum_prefix.h.tmp", "iDrum_prefix.h")

with rio, you can edit a file inplace; 
this changes all x into y in file z:

#!/usr/bin/ruby   
require 'rubygems'
require 'rio'
rio('z') <  rio('z').read.gsub(/x/,'y')

-- 
Wybo