rexec.rb

#!/usr/bin/env ruby

require 'rexec'

CLIENT = <<EOF

$connection.run do |path|
    listing = []

    IO.popen("ls -la " + path.dump, "r+") do |ls|
        listing = ls.readlines
    end

    $connection.send_object(listing)
end

EOF

command = ARGV[0] || "ruby"

puts "Starting server..."
RExec::start_server(CLIENT, command) do |conn, pid|
    puts "Sending path..."
    conn.send_object("/")

    puts "Waiting for response..."
    listing = conn.receive_object

    puts "Received listing:"
    listing.each do |entry|
        puts "\t#{entry}"
    end
end