Embedding ruby in bash

gistfile1.rb

echo "Retrieving application files from cloud to put in local database:"

printf '%s\n%s\n' `echo "
require 'rubygems'
require 'couchrest'

cloud_db_url = 'http://example.org/zanzibar'
local_db_url = 'http://localhost:5984/zanzibar'

@cloud_db = CouchRest.database(cloud_db_url)
@local_db = CouchRest.database(local_db_url)

#puts @cloud_db.view('zanzibar/docIDsForUpdating', {:include_docs => true})['rows']
@cloud_db.view('zanzibar/docIDsForUpdating', {:include_docs => true})['rows'].each do |doc|
  puts doc['id']
  @local_db.save_doc(doc)
end
" | /usr/bin/ruby`