A couple simple classes to aid in batch searching and deleting users from a local Apple Open Directory server

batch_delete_od_users.rb

class LocalODServer
  attr_accessor :username, :password

  def initialize(username, password)
    @username = username
    @password = password
  end

  def ip
    '127.0.0.1'
  end

  def get_users(attribute, value)
    dscl.search_users attribute, value
  end

  def delete_user(username)
    dscl.delete_user username
  end

  private

  def dscl
    @dscl ||= DSCL.new self
  end
end

class DSCL
  attr_accessor :od_server

  def initialize(od_server)
    @od_server = od_server
  end

  def exec(command)
    `dscl -u #{@od_server.username} -P #{@od_server.password} /LDAPv3/#{@od_server.ip} #{command}`
  end

  def search(path, attribute, value)
    self.exec "-search #{path} #{attribute} #{value}"
  end

  def search_users(attribute, value)
    results_to_usernames search("/Users", attribute, value)
  end

  def delete_user(username)
    self.exec "-delete /Users/#{username}"
  end

  private

  def results_to_usernames(results)
     results.scan(/^([a-z]+[0-9]*)\t{2}/).flatten
  end
end

# Example usage
# od = LocalODServer.new 'admin', 'secret'
# usernames = od.get_users('eduPersonPrimaryAffiliation', 'alumnus')
# usernames.each { |username| od.delete_user username }