From: Basile STARYNKEVITCH <basile+NO@...+starynkevitch.net.invalid>
Date: 2002-12-26T15:27:54+09:00
Subject: Re: Linux sys admin

>>>>> "Matthew" == Matthew Huggett <mhuggett@zam.att.ne.jp> writes:

    Matthew> Hi: I'm real new to Ruby, and I'm wondering how to call a
    Matthew> program like tar or gzip from a Ruby script.  Where can I
    Matthew> find documentation for this sort of thing?


http://www.rubycentral.com/ref/

http://www.ruby-lang.org/~slagell/ruby/rubyguide.html

To run a command, use Kernel.system (like system(3) in C)

To run a piped command use | as first char in open:

  open("|wc *.c") do |f| 
    f.each do |line|
      line.gsub(/a+/) do |nam|
        puts(nam)
      end
    end
  end

You may also use the low level Kernel.exec with Kernel.fork

see also IO.popen


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